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I added an idf sample from DOE

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Soroush Samareh Abolhassani 2021-08-17 10:17:07 -04:00
parent e1f0f47bd0
commit 3d922ab4f4
577 changed files with 226812 additions and 0 deletions
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# Default ignored files
/shelf/
/workspace.xml

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<component name="InspectionProjectProfileManager">
<settings>
<option name="USE_PROJECT_PROFILE" value="false" />
<version value="1.0" />
</settings>
</component>

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<?xml version="1.0" encoding="UTF-8"?>
<module type="PYTHON_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$">
<excludeFolder url="file://$MODULE_DIR$/venv" />
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<option name="myDocStringFormat" value="Plain" />
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" project-jdk-name="Python 3.9 (libs_EPlus)" project-jdk-type="Python SDK" />
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
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<?xml version="1.0" encoding="UTF-8"?>
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import sys
import os
import re
import importlib
import warnings
is_pypy = '__pypy__' in sys.builtin_module_names
warnings.filterwarnings('ignore',
r'.+ distutils\b.+ deprecated',
DeprecationWarning)
def warn_distutils_present():
if 'distutils' not in sys.modules:
return
if is_pypy and sys.version_info < (3, 7):
# PyPy for 3.6 unconditionally imports distutils, so bypass the warning
# https://foss.heptapod.net/pypy/pypy/-/blob/be829135bc0d758997b3566062999ee8b23872b4/lib-python/3/site.py#L250
return
warnings.warn(
"Distutils was imported before Setuptools, but importing Setuptools "
"also replaces the `distutils` module in `sys.modules`. This may lead "
"to undesirable behaviors or errors. To avoid these issues, avoid "
"using distutils directly, ensure that setuptools is installed in the "
"traditional way (e.g. not an editable install), and/or make sure "
"that setuptools is always imported before distutils.")
def clear_distutils():
if 'distutils' not in sys.modules:
return
warnings.warn("Setuptools is replacing distutils.")
mods = [name for name in sys.modules if re.match(r'distutils\b', name)]
for name in mods:
del sys.modules[name]
def enabled():
"""
Allow selection of distutils by environment variable.
"""
which = os.environ.get('SETUPTOOLS_USE_DISTUTILS', 'stdlib')
return which == 'local'
def ensure_local_distutils():
clear_distutils()
distutils = importlib.import_module('setuptools._distutils')
distutils.__name__ = 'distutils'
sys.modules['distutils'] = distutils
# sanity check that submodules load as expected
core = importlib.import_module('distutils.core')
assert '_distutils' in core.__file__, core.__file__
def do_override():
"""
Ensure that the local copy of distutils is preferred over stdlib.
See https://github.com/pypa/setuptools/issues/417#issuecomment-392298401
for more motivation.
"""
if enabled():
warn_distutils_present()
ensure_local_distutils()
class DistutilsMetaFinder:
def find_spec(self, fullname, path, target=None):
if path is not None:
return
method_name = 'spec_for_{fullname}'.format(**locals())
method = getattr(self, method_name, lambda: None)
return method()
def spec_for_distutils(self):
import importlib.abc
import importlib.util
class DistutilsLoader(importlib.abc.Loader):
def create_module(self, spec):
return importlib.import_module('setuptools._distutils')
def exec_module(self, module):
pass
return importlib.util.spec_from_loader('distutils', DistutilsLoader())
def spec_for_pip(self):
"""
Ensure stdlib distutils when running under pip.
See pypa/pip#8761 for rationale.
"""
if self.pip_imported_during_build():
return
clear_distutils()
self.spec_for_distutils = lambda: None
@staticmethod
def pip_imported_during_build():
"""
Detect if pip is being imported in a build script. Ref #2355.
"""
import traceback
return any(
frame.f_globals['__file__'].endswith('setup.py')
for frame, line in traceback.walk_stack(None)
)
DISTUTILS_FINDER = DistutilsMetaFinder()
def add_shim():
sys.meta_path.insert(0, DISTUTILS_FINDER)
def remove_shim():
try:
sys.meta_path.remove(DISTUTILS_FINDER)
except ValueError:
pass

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__import__('_distutils_hack').do_override()

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venv/Lib/site-packages/distutils-precedence.pth Normal file
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import os; var = 'SETUPTOOLS_USE_DISTUTILS'; enabled = os.environ.get(var, 'stdlib') == 'local'; enabled and __import__('_distutils_hack').add_shim();

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pip

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venv/Lib/site-packages/pip-21.2.4.dist-info/LICENSE.txt Normal file
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Copyright (c) 2008-2021 The pip developers (see AUTHORS.txt file)
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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venv/Lib/site-packages/pip-21.2.4.dist-info/METADATA Normal file
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Metadata-Version: 2.1
Name: pip
Version: 21.2.4
Summary: The PyPA recommended tool for installing Python packages.
Home-page: https://pip.pypa.io/
Author: The pip developers
Author-email: distutils-sig@python.org
License: MIT
Project-URL: Documentation, https://pip.pypa.io
Project-URL: Source, https://github.com/pypa/pip
Project-URL: Changelog, https://pip.pypa.io/en/stable/news/
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Topic :: Software Development :: Build Tools
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3 :: Only
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Requires-Python: >=3.6
License-File: LICENSE.txt
pip - The Python Package Installer
==================================
.. image:: https://img.shields.io/pypi/v/pip.svg
:target: https://pypi.org/project/pip/
.. image:: https://readthedocs.org/projects/pip/badge/?version=latest
:target: https://pip.pypa.io/en/latest
pip is the `package installer`_ for Python. You can use pip to install packages from the `Python Package Index`_ and other indexes.
Please take a look at our documentation for how to install and use pip:
* `Installation`_
* `Usage`_
We release updates regularly, with a new version every 3 months. Find more details in our documentation:
* `Release notes`_
* `Release process`_
In pip 20.3, we've `made a big improvement to the heart of pip`_; `learn more`_. We want your input, so `sign up for our user experience research studies`_ to help us do it right.
**Note**: pip 21.0, in January 2021, removed Python 2 support, per pip's `Python 2 support policy`_. Please migrate to Python 3.
If you find bugs, need help, or want to talk to the developers, please use our mailing lists or chat rooms:
* `Issue tracking`_
* `Discourse channel`_
* `User IRC`_
If you want to get involved head over to GitHub to get the source code, look at our development documentation and feel free to jump on the developer mailing lists and chat rooms:
* `GitHub page`_
* `Development documentation`_
* `Development mailing list`_
* `Development IRC`_
Code of Conduct
---------------
Everyone interacting in the pip project's codebases, issue trackers, chat
rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_.
.. _package installer: https://packaging.python.org/guides/tool-recommendations/
.. _Python Package Index: https://pypi.org
.. _Installation: https://pip.pypa.io/en/stable/installation/
.. _Usage: https://pip.pypa.io/en/stable/
.. _Release notes: https://pip.pypa.io/en/stable/news.html
.. _Release process: https://pip.pypa.io/en/latest/development/release-process/
.. _GitHub page: https://github.com/pypa/pip
.. _Development documentation: https://pip.pypa.io/en/latest/development
.. _made a big improvement to the heart of pip: https://pyfound.blogspot.com/2020/11/pip-20-3-new-resolver.html
.. _learn more: https://pip.pypa.io/en/latest/user_guide/#changes-to-the-pip-dependency-resolver-in-20-3-2020
.. _sign up for our user experience research studies: https://pyfound.blogspot.com/2020/03/new-pip-resolver-to-roll-out-this-year.html
.. _Python 2 support policy: https://pip.pypa.io/en/latest/development/release-process/#python-2-support
.. _Issue tracking: https://github.com/pypa/pip/issues
.. _Discourse channel: https://discuss.python.org/c/packaging
.. _Development mailing list: https://mail.python.org/mailman3/lists/distutils-sig.python.org/
.. _User IRC: https://kiwiirc.com/nextclient/#ircs://irc.libera.chat:+6697/pypa
.. _Development IRC: https://kiwiirc.com/nextclient/#ircs://irc.libera.chat:+6697/pypa-dev
.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md

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5
venv/Lib/site-packages/pip-21.2.4.dist-info/WHEEL Normal file
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Wheel-Version: 1.0
Generator: bdist_wheel (0.36.2)
Root-Is-Purelib: true
Tag: py3-none-any

5
venv/Lib/site-packages/pip-21.2.4.dist-info/entry_points.txt Normal file
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[console_scripts]
pip = pip._internal.cli.main:main
pip3 = pip._internal.cli.main:main
pip3.9 = pip._internal.cli.main:main

1
venv/Lib/site-packages/pip-21.2.4.dist-info/top_level.txt Normal file
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pip

13
venv/Lib/site-packages/pip/__init__.py Normal file
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from typing import List, Optional
__version__ = "21.2.4"
def main(args: Optional[List[str]] = None) -> int:
"""This is an internal API only meant for use by pip's own console scripts.
For additional details, see https://github.com/pypa/pip/issues/7498.
"""
from pip._internal.utils.entrypoints import _wrapper
return _wrapper(args)

31
venv/Lib/site-packages/pip/__main__.py Normal file
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import os
import sys
import warnings
# Remove '' and current working directory from the first entry
# of sys.path, if present to avoid using current directory
# in pip commands check, freeze, install, list and show,
# when invoked as python -m pip <command>
if sys.path[0] in ("", os.getcwd()):
sys.path.pop(0)
# If we are running from a wheel, add the wheel to sys.path
# This allows the usage python pip-*.whl/pip install pip-*.whl
if __package__ == "":
# __file__ is pip-*.whl/pip/__main__.py
# first dirname call strips of '/__main__.py', second strips off '/pip'
# Resulting path is the name of the wheel itself
# Add that to sys.path so we can import pip
path = os.path.dirname(os.path.dirname(__file__))
sys.path.insert(0, path)
if __name__ == "__main__":
# Work around the error reported in #9540, pending a proper fix.
# Note: It is essential the warning filter is set *before* importing
# pip, as the deprecation happens at import time, not runtime.
warnings.filterwarnings(
"ignore", category=DeprecationWarning, module=".*packaging\\.version"
)
from pip._internal.cli.main import main as _main
sys.exit(_main())

19
venv/Lib/site-packages/pip/_internal/__init__.py Normal file
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from typing import List, Optional
import pip._internal.utils.inject_securetransport # noqa
from pip._internal.utils import _log
# init_logging() must be called before any call to logging.getLogger()
# which happens at import of most modules.
_log.init_logging()
def main(args: (Optional[List[str]]) = None) -> int:
"""This is preserved for old console scripts that may still be referencing
it.
For additional details, see https://github.com/pypa/pip/issues/7498.
"""
from pip._internal.utils.entrypoints import _wrapper
return _wrapper(args)

294
venv/Lib/site-packages/pip/_internal/build_env.py Normal file
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"""Build Environment used for isolation during sdist building
"""
import contextlib
import logging
import os
import pathlib
import sys
import textwrap
import zipfile
from collections import OrderedDict
from sysconfig import get_paths
from types import TracebackType
from typing import TYPE_CHECKING, Iterable, Iterator, List, Optional, Set, Tuple, Type
from pip._vendor.certifi import where
from pip._vendor.packaging.requirements import Requirement
from pip._vendor.packaging.version import Version
from pip import __file__ as pip_location
from pip._internal.cli.spinners import open_spinner
from pip._internal.locations import get_platlib, get_prefixed_libs, get_purelib
from pip._internal.metadata import get_environment
from pip._internal.utils.subprocess import call_subprocess
from pip._internal.utils.temp_dir import TempDirectory, tempdir_kinds
if TYPE_CHECKING:
from pip._internal.index.package_finder import PackageFinder
logger = logging.getLogger(__name__)
class _Prefix:
def __init__(self, path):
# type: (str) -> None
self.path = path
self.setup = False
self.bin_dir = get_paths(
'nt' if os.name == 'nt' else 'posix_prefix',
vars={'base': path, 'platbase': path}
)['scripts']
self.lib_dirs = get_prefixed_libs(path)
@contextlib.contextmanager
def _create_standalone_pip() -> Iterator[str]:
"""Create a "standalone pip" zip file.
The zip file's content is identical to the currently-running pip.
It will be used to install requirements into the build environment.
"""
source = pathlib.Path(pip_location).resolve().parent
# Return the current instance if `source` is not a directory. We can't build
# a zip from this, and it likely means the instance is already standalone.
if not source.is_dir():
yield str(source)
return
with TempDirectory(kind="standalone-pip") as tmp_dir:
pip_zip = os.path.join(tmp_dir.path, "__env_pip__.zip")
kwargs = {}
if sys.version_info >= (3, 8):
kwargs["strict_timestamps"] = False
with zipfile.ZipFile(pip_zip, "w", **kwargs) as zf:
for child in source.rglob("*"):
zf.write(child, child.relative_to(source.parent).as_posix())
yield os.path.join(pip_zip, "pip")
class BuildEnvironment:
"""Creates and manages an isolated environment to install build deps
"""
def __init__(self):
# type: () -> None
temp_dir = TempDirectory(
kind=tempdir_kinds.BUILD_ENV, globally_managed=True
)
self._prefixes = OrderedDict(
(name, _Prefix(os.path.join(temp_dir.path, name)))
for name in ('normal', 'overlay')
)
self._bin_dirs = [] # type: List[str]
self._lib_dirs = [] # type: List[str]
for prefix in reversed(list(self._prefixes.values())):
self._bin_dirs.append(prefix.bin_dir)
self._lib_dirs.extend(prefix.lib_dirs)
# Customize site to:
# - ensure .pth files are honored
# - prevent access to system site packages
system_sites = {
os.path.normcase(site) for site in (get_purelib(), get_platlib())
}
self._site_dir = os.path.join(temp_dir.path, 'site')
if not os.path.exists(self._site_dir):
os.mkdir(self._site_dir)
with open(os.path.join(self._site_dir, 'sitecustomize.py'), 'w') as fp:
fp.write(textwrap.dedent(
'''
import os, site, sys
# First, drop system-sites related paths.
original_sys_path = sys.path[:]
known_paths = set()
for path in {system_sites!r}:
site.addsitedir(path, known_paths=known_paths)
system_paths = set(
os.path.normcase(path)
for path in sys.path[len(original_sys_path):]
)
original_sys_path = [
path for path in original_sys_path
if os.path.normcase(path) not in system_paths
]
sys.path = original_sys_path
# Second, add lib directories.
# ensuring .pth file are processed.
for path in {lib_dirs!r}:
assert not path in sys.path
site.addsitedir(path)
'''
).format(system_sites=system_sites, lib_dirs=self._lib_dirs))
def __enter__(self):
# type: () -> None
self._save_env = {
name: os.environ.get(name, None)
for name in ('PATH', 'PYTHONNOUSERSITE', 'PYTHONPATH')
}
path = self._bin_dirs[:]
old_path = self._save_env['PATH']
if old_path:
path.extend(old_path.split(os.pathsep))
pythonpath = [self._site_dir]
os.environ.update({
'PATH': os.pathsep.join(path),
'PYTHONNOUSERSITE': '1',
'PYTHONPATH': os.pathsep.join(pythonpath),
})
def __exit__(
self,
exc_type, # type: Optional[Type[BaseException]]
exc_val, # type: Optional[BaseException]
exc_tb # type: Optional[TracebackType]
):
# type: (...) -> None
for varname, old_value in self._save_env.items():
if old_value is None:
os.environ.pop(varname, None)
else:
os.environ[varname] = old_value
def check_requirements(self, reqs):
# type: (Iterable[str]) -> Tuple[Set[Tuple[str, str]], Set[str]]
"""Return 2 sets:
- conflicting requirements: set of (installed, wanted) reqs tuples
- missing requirements: set of reqs
"""
missing = set()
conflicting = set()
if reqs:
env = get_environment(self._lib_dirs)
for req_str in reqs:
req = Requirement(req_str)
dist = env.get_distribution(req.name)
if not dist:
missing.add(req_str)
continue
if isinstance(dist.version, Version):
installed_req_str = f"{req.name}=={dist.version}"
else:
installed_req_str = f"{req.name}==={dist.version}"
if dist.version not in req.specifier:
conflicting.add((installed_req_str, req_str))
# FIXME: Consider direct URL?
return conflicting, missing
def install_requirements(
self,
finder, # type: PackageFinder
requirements, # type: Iterable[str]
prefix_as_string, # type: str
message # type: str
):
# type: (...) -> None
prefix = self._prefixes[prefix_as_string]
assert not prefix.setup
prefix.setup = True
if not requirements:
return
with contextlib.ExitStack() as ctx:
# TODO: Remove this block when dropping 3.6 support. Python 3.6
# lacks importlib.resources and pep517 has issues loading files in
# a zip, so we fallback to the "old" method by adding the current
# pip directory to the child process's sys.path.
if sys.version_info < (3, 7):
pip_runnable = os.path.dirname(pip_location)
else:
pip_runnable = ctx.enter_context(_create_standalone_pip())
self._install_requirements(
pip_runnable,
finder,
requirements,
prefix,
message,
)
@staticmethod
def _install_requirements(
pip_runnable: str,
finder: "PackageFinder",
requirements: Iterable[str],
prefix: _Prefix,
message: str,
) -> None:
args = [
sys.executable, pip_runnable, 'install',
'--ignore-installed', '--no-user', '--prefix', prefix.path,
'--no-warn-script-location',
] # type: List[str]
if logger.getEffectiveLevel() <= logging.DEBUG:
args.append('-v')
for format_control in ('no_binary', 'only_binary'):
formats = getattr(finder.format_control, format_control)
args.extend(('--' + format_control.replace('_', '-'),
','.join(sorted(formats or {':none:'}))))
index_urls = finder.index_urls
if index_urls:
args.extend(['-i', index_urls[0]])
for extra_index in index_urls[1:]:
args.extend(['--extra-index-url', extra_index])
else:
args.append('--no-index')
for link in finder.find_links:
args.extend(['--find-links', link])
for host in finder.trusted_hosts:
args.extend(['--trusted-host', host])
if finder.allow_all_prereleases:
args.append('--pre')
if finder.prefer_binary:
args.append('--prefer-binary')
args.append('--')
args.extend(requirements)
extra_environ = {"_PIP_STANDALONE_CERT": where()}
with open_spinner(message) as spinner:
call_subprocess(args, spinner=spinner, extra_environ=extra_environ)
class NoOpBuildEnvironment(BuildEnvironment):
"""A no-op drop-in replacement for BuildEnvironment
"""
def __init__(self):
# type: () -> None
pass
def __enter__(self):
# type: () -> None
pass
def __exit__(
self,
exc_type, # type: Optional[Type[BaseException]]
exc_val, # type: Optional[BaseException]
exc_tb # type: Optional[TracebackType]
):
# type: (...) -> None
pass
def cleanup(self):
# type: () -> None
pass
def install_requirements(
self,
finder, # type: PackageFinder
requirements, # type: Iterable[str]
prefix_as_string, # type: str
message # type: str
):
# type: (...) -> None
raise NotImplementedError()

287
venv/Lib/site-packages/pip/_internal/cache.py Normal file
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@ -0,0 +1,287 @@
"""Cache Management
"""
import hashlib
import json
import logging
import os
from typing import Any, Dict, List, Optional, Set
from pip._vendor.packaging.tags import Tag, interpreter_name, interpreter_version
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.exceptions import InvalidWheelFilename
from pip._internal.models.format_control import FormatControl
from pip._internal.models.link import Link
from pip._internal.models.wheel import Wheel
from pip._internal.utils.temp_dir import TempDirectory, tempdir_kinds
from pip._internal.utils.urls import path_to_url
logger = logging.getLogger(__name__)
def _hash_dict(d):
# type: (Dict[str, str]) -> str
"""Return a stable sha224 of a dictionary."""
s = json.dumps(d, sort_keys=True, separators=(",", ":"), ensure_ascii=True)
return hashlib.sha224(s.encode("ascii")).hexdigest()
class Cache:
"""An abstract class - provides cache directories for data from links
:param cache_dir: The root of the cache.
:param format_control: An object of FormatControl class to limit
binaries being read from the cache.
:param allowed_formats: which formats of files the cache should store.
('binary' and 'source' are the only allowed values)
"""
def __init__(self, cache_dir, format_control, allowed_formats):
# type: (str, FormatControl, Set[str]) -> None
super().__init__()
assert not cache_dir or os.path.isabs(cache_dir)
self.cache_dir = cache_dir or None
self.format_control = format_control
self.allowed_formats = allowed_formats
_valid_formats = {"source", "binary"}
assert self.allowed_formats.union(_valid_formats) == _valid_formats
def _get_cache_path_parts(self, link):
# type: (Link) -> List[str]
"""Get parts of part that must be os.path.joined with cache_dir
"""
# We want to generate an url to use as our cache key, we don't want to
# just re-use the URL because it might have other items in the fragment
# and we don't care about those.
key_parts = {"url": link.url_without_fragment}
if link.hash_name is not None and link.hash is not None:
key_parts[link.hash_name] = link.hash
if link.subdirectory_fragment:
key_parts["subdirectory"] = link.subdirectory_fragment
# Include interpreter name, major and minor version in cache key
# to cope with ill-behaved sdists that build a different wheel
# depending on the python version their setup.py is being run on,
# and don't encode the difference in compatibility tags.
# https://github.com/pypa/pip/issues/7296
key_parts["interpreter_name"] = interpreter_name()
key_parts["interpreter_version"] = interpreter_version()
# Encode our key url with sha224, we'll use this because it has similar
# security properties to sha256, but with a shorter total output (and
# thus less secure). However the differences don't make a lot of
# difference for our use case here.
hashed = _hash_dict(key_parts)
# We want to nest the directories some to prevent having a ton of top
# level directories where we might run out of sub directories on some
# FS.
parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
return parts
def _get_candidates(self, link, canonical_package_name):
# type: (Link, str) -> List[Any]
can_not_cache = (
not self.cache_dir or
not canonical_package_name or
not link
)
if can_not_cache:
return []
formats = self.format_control.get_allowed_formats(
canonical_package_name
)
if not self.allowed_formats.intersection(formats):
return []
candidates = []
path = self.get_path_for_link(link)
if os.path.isdir(path):
for candidate in os.listdir(path):
candidates.append((candidate, path))
return candidates
def get_path_for_link(self, link):
# type: (Link) -> str
"""Return a directory to store cached items in for link.
"""
raise NotImplementedError()
def get(
self,
link, # type: Link
package_name, # type: Optional[str]
supported_tags, # type: List[Tag]
):
# type: (...) -> Link
"""Returns a link to a cached item if it exists, otherwise returns the
passed link.
"""
raise NotImplementedError()
class SimpleWheelCache(Cache):
"""A cache of wheels for future installs.
"""
def __init__(self, cache_dir, format_control):
# type: (str, FormatControl) -> None
super().__init__(cache_dir, format_control, {"binary"})
def get_path_for_link(self, link):
# type: (Link) -> str
"""Return a directory to store cached wheels for link
Because there are M wheels for any one sdist, we provide a directory
to cache them in, and then consult that directory when looking up
cache hits.
We only insert things into the cache if they have plausible version
numbers, so that we don't contaminate the cache with things that were
not unique. E.g. ./package might have dozens of installs done for it
and build a version of 0.0...and if we built and cached a wheel, we'd
end up using the same wheel even if the source has been edited.
:param link: The link of the sdist for which this will cache wheels.
"""
parts = self._get_cache_path_parts(link)
assert self.cache_dir
# Store wheels within the root cache_dir
return os.path.join(self.cache_dir, "wheels", *parts)
def get(
self,
link, # type: Link
package_name, # type: Optional[str]
supported_tags, # type: List[Tag]
):
# type: (...) -> Link
candidates = []
if not package_name:
return link
canonical_package_name = canonicalize_name(package_name)
for wheel_name, wheel_dir in self._get_candidates(
link, canonical_package_name
):
try:
wheel = Wheel(wheel_name)
except InvalidWheelFilename:
continue
if canonicalize_name(wheel.name) != canonical_package_name:
logger.debug(
"Ignoring cached wheel %s for %s as it "
"does not match the expected distribution name %s.",
wheel_name, link, package_name,
)
continue
if not wheel.supported(supported_tags):
# Built for a different python/arch/etc
continue
candidates.append(
(
wheel.support_index_min(supported_tags),
wheel_name,
wheel_dir,
)
)
if not candidates:
return link
_, wheel_name, wheel_dir = min(candidates)
return Link(path_to_url(os.path.join(wheel_dir, wheel_name)))
class EphemWheelCache(SimpleWheelCache):
"""A SimpleWheelCache that creates it's own temporary cache directory
"""
def __init__(self, format_control):
# type: (FormatControl) -> None
self._temp_dir = TempDirectory(
kind=tempdir_kinds.EPHEM_WHEEL_CACHE,
globally_managed=True,
)
super().__init__(self._temp_dir.path, format_control)
class CacheEntry:
def __init__(
self,
link, # type: Link
persistent, # type: bool
):
self.link = link
self.persistent = persistent
class WheelCache(Cache):
"""Wraps EphemWheelCache and SimpleWheelCache into a single Cache
This Cache allows for gracefully degradation, using the ephem wheel cache
when a certain link is not found in the simple wheel cache first.
"""
def __init__(self, cache_dir, format_control):
# type: (str, FormatControl) -> None
super().__init__(cache_dir, format_control, {'binary'})
self._wheel_cache = SimpleWheelCache(cache_dir, format_control)
self._ephem_cache = EphemWheelCache(format_control)
def get_path_for_link(self, link):
# type: (Link) -> str
return self._wheel_cache.get_path_for_link(link)
def get_ephem_path_for_link(self, link):
# type: (Link) -> str
return self._ephem_cache.get_path_for_link(link)
def get(
self,
link, # type: Link
package_name, # type: Optional[str]
supported_tags, # type: List[Tag]
):
# type: (...) -> Link
cache_entry = self.get_cache_entry(link, package_name, supported_tags)
if cache_entry is None:
return link
return cache_entry.link
def get_cache_entry(
self,
link, # type: Link
package_name, # type: Optional[str]
supported_tags, # type: List[Tag]
):
# type: (...) -> Optional[CacheEntry]
"""Returns a CacheEntry with a link to a cached item if it exists or
None. The cache entry indicates if the item was found in the persistent
or ephemeral cache.
"""
retval = self._wheel_cache.get(
link=link,
package_name=package_name,
supported_tags=supported_tags,
)
if retval is not link:
return CacheEntry(retval, persistent=True)
retval = self._ephem_cache.get(
link=link,
package_name=package_name,
supported_tags=supported_tags,
)
if retval is not link:
return CacheEntry(retval, persistent=False)
return None

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"""Subpackage containing all of pip's command line interface related code
"""
# This file intentionally does not import submodules

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"""Logic that powers autocompletion installed by ``pip completion``.
"""
import optparse
import os
import sys
from itertools import chain
from typing import Any, Iterable, List, Optional
from pip._internal.cli.main_parser import create_main_parser
from pip._internal.commands import commands_dict, create_command
from pip._internal.metadata import get_default_environment
def autocomplete() -> None:
"""Entry Point for completion of main and subcommand options."""
# Don't complete if user hasn't sourced bash_completion file.
if "PIP_AUTO_COMPLETE" not in os.environ:
return
cwords = os.environ["COMP_WORDS"].split()[1:]
cword = int(os.environ["COMP_CWORD"])
try:
current = cwords[cword - 1]
except IndexError:
current = ""
parser = create_main_parser()
subcommands = list(commands_dict)
options = []
# subcommand
subcommand_name: Optional[str] = None
for word in cwords:
if word in subcommands:
subcommand_name = word
break
# subcommand options
if subcommand_name is not None:
# special case: 'help' subcommand has no options
if subcommand_name == "help":
sys.exit(1)
# special case: list locally installed dists for show and uninstall
should_list_installed = not current.startswith("-") and subcommand_name in [
"show",
"uninstall",
]
if should_list_installed:
env = get_default_environment()
lc = current.lower()
installed = [
dist.canonical_name
for dist in env.iter_installed_distributions(local_only=True)
if dist.canonical_name.startswith(lc)
and dist.canonical_name not in cwords[1:]
]
# if there are no dists installed, fall back to option completion
if installed:
for dist in installed:
print(dist)
sys.exit(1)
subcommand = create_command(subcommand_name)
for opt in subcommand.parser.option_list_all:
if opt.help != optparse.SUPPRESS_HELP:
for opt_str in opt._long_opts + opt._short_opts:
options.append((opt_str, opt.nargs))
# filter out previously specified options from available options
prev_opts = [x.split("=")[0] for x in cwords[1 : cword - 1]]
options = [(x, v) for (x, v) in options if x not in prev_opts]
# filter options by current input
options = [(k, v) for k, v in options if k.startswith(current)]
# get completion type given cwords and available subcommand options
completion_type = get_path_completion_type(
cwords,
cword,
subcommand.parser.option_list_all,
)
# get completion files and directories if ``completion_type`` is
# ``<file>``, ``<dir>`` or ``<path>``
if completion_type:
paths = auto_complete_paths(current, completion_type)
options = [(path, 0) for path in paths]
for option in options:
opt_label = option[0]
# append '=' to options which require args
if option[1] and option[0][:2] == "--":
opt_label += "="
print(opt_label)
else:
# show main parser options only when necessary
opts = [i.option_list for i in parser.option_groups]
opts.append(parser.option_list)
flattened_opts = chain.from_iterable(opts)
if current.startswith("-"):
for opt in flattened_opts:
if opt.help != optparse.SUPPRESS_HELP:
subcommands += opt._long_opts + opt._short_opts
else:
# get completion type given cwords and all available options
completion_type = get_path_completion_type(cwords, cword, flattened_opts)
if completion_type:
subcommands = list(auto_complete_paths(current, completion_type))
print(" ".join([x for x in subcommands if x.startswith(current)]))
sys.exit(1)
def get_path_completion_type(
cwords: List[str], cword: int, opts: Iterable[Any]
) -> Optional[str]:
"""Get the type of path completion (``file``, ``dir``, ``path`` or None)
:param cwords: same as the environmental variable ``COMP_WORDS``
:param cword: same as the environmental variable ``COMP_CWORD``
:param opts: The available options to check
:return: path completion type (``file``, ``dir``, ``path`` or None)
"""
if cword < 2 or not cwords[cword - 2].startswith("-"):
return None
for opt in opts:
if opt.help == optparse.SUPPRESS_HELP:
continue
for o in str(opt).split("/"):
if cwords[cword - 2].split("=")[0] == o:
if not opt.metavar or any(
x in ("path", "file", "dir") for x in opt.metavar.split("/")
):
return opt.metavar
return None
def auto_complete_paths(current: str, completion_type: str) -> Iterable[str]:
"""If ``completion_type`` is ``file`` or ``path``, list all regular files
and directories starting with ``current``; otherwise only list directories
starting with ``current``.
:param current: The word to be completed
:param completion_type: path completion type(`file`, `path` or `dir`)i
:return: A generator of regular files and/or directories
"""
directory, filename = os.path.split(current)
current_path = os.path.abspath(directory)
# Don't complete paths if they can't be accessed
if not os.access(current_path, os.R_OK):
return
filename = os.path.normcase(filename)
# list all files that start with ``filename``
file_list = (
x for x in os.listdir(current_path) if os.path.normcase(x).startswith(filename)
)
for f in file_list:
opt = os.path.join(current_path, f)
comp_file = os.path.normcase(os.path.join(directory, f))
# complete regular files when there is not ``<dir>`` after option
# complete directories when there is ``<file>``, ``<path>`` or
# ``<dir>``after option
if completion_type != "dir" and os.path.isfile(opt):
yield comp_file
elif os.path.isdir(opt):
yield os.path.join(comp_file, "")

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"""Base Command class, and related routines"""
import logging
import logging.config
import optparse
import os
import sys
import traceback
from optparse import Values
from typing import Any, List, Optional, Tuple
from pip._internal.cli import cmdoptions
from pip._internal.cli.command_context import CommandContextMixIn
from pip._internal.cli.parser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
from pip._internal.cli.status_codes import (
ERROR,
PREVIOUS_BUILD_DIR_ERROR,
UNKNOWN_ERROR,
VIRTUALENV_NOT_FOUND,
)
from pip._internal.exceptions import (
BadCommand,
CommandError,
InstallationError,
NetworkConnectionError,
PreviousBuildDirError,
UninstallationError,
)
from pip._internal.utils.deprecation import deprecated
from pip._internal.utils.filesystem import check_path_owner
from pip._internal.utils.logging import BrokenStdoutLoggingError, setup_logging
from pip._internal.utils.misc import get_prog, normalize_path
from pip._internal.utils.temp_dir import TempDirectoryTypeRegistry as TempDirRegistry
from pip._internal.utils.temp_dir import global_tempdir_manager, tempdir_registry
from pip._internal.utils.virtualenv import running_under_virtualenv
__all__ = ["Command"]
logger = logging.getLogger(__name__)
class Command(CommandContextMixIn):
usage: str = ""
ignore_require_venv: bool = False
def __init__(self, name: str, summary: str, isolated: bool = False) -> None:
super().__init__()
self.name = name
self.summary = summary
self.parser = ConfigOptionParser(
usage=self.usage,
prog=f"{get_prog()} {name}",
formatter=UpdatingDefaultsHelpFormatter(),
add_help_option=False,
name=name,
description=self.__doc__,
isolated=isolated,
)
self.tempdir_registry: Optional[TempDirRegistry] = None
# Commands should add options to this option group
optgroup_name = f"{self.name.capitalize()} Options"
self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)
# Add the general options
gen_opts = cmdoptions.make_option_group(
cmdoptions.general_group,
self.parser,
)
self.parser.add_option_group(gen_opts)
self.add_options()
def add_options(self) -> None:
pass
def handle_pip_version_check(self, options: Values) -> None:
"""
This is a no-op so that commands by default do not do the pip version
check.
"""
# Make sure we do the pip version check if the index_group options
# are present.
assert not hasattr(options, "no_index")
def run(self, options: Values, args: List[Any]) -> int:
raise NotImplementedError
def parse_args(self, args: List[str]) -> Tuple[Any, Any]:
# factored out for testability
return self.parser.parse_args(args)
def main(self, args: List[str]) -> int:
try:
with self.main_context():
return self._main(args)
finally:
logging.shutdown()
def _main(self, args: List[str]) -> int:
# We must initialize this before the tempdir manager, otherwise the
# configuration would not be accessible by the time we clean up the
# tempdir manager.
self.tempdir_registry = self.enter_context(tempdir_registry())
# Intentionally set as early as possible so globally-managed temporary
# directories are available to the rest of the code.
self.enter_context(global_tempdir_manager())
options, args = self.parse_args(args)
# Set verbosity so that it can be used elsewhere.
self.verbosity = options.verbose - options.quiet
level_number = setup_logging(
verbosity=self.verbosity,
no_color=options.no_color,
user_log_file=options.log,
)
# TODO: Try to get these passing down from the command?
# without resorting to os.environ to hold these.
# This also affects isolated builds and it should.
if options.no_input:
os.environ["PIP_NO_INPUT"] = "1"
if options.exists_action:
os.environ["PIP_EXISTS_ACTION"] = " ".join(options.exists_action)
if options.require_venv and not self.ignore_require_venv:
# If a venv is required check if it can really be found
if not running_under_virtualenv():
logger.critical("Could not find an activated virtualenv (required).")
sys.exit(VIRTUALENV_NOT_FOUND)
if options.cache_dir:
options.cache_dir = normalize_path(options.cache_dir)
if not check_path_owner(options.cache_dir):
logger.warning(
"The directory '%s' or its parent directory is not owned "
"or is not writable by the current user. The cache "
"has been disabled. Check the permissions and owner of "
"that directory. If executing pip with sudo, you should "
"use sudo's -H flag.",
options.cache_dir,
)
options.cache_dir = None
if getattr(options, "build_dir", None):
deprecated(
reason=(
"The -b/--build/--build-dir/--build-directory "
"option is deprecated and has no effect anymore."
),
replacement=(
"use the TMPDIR/TEMP/TMP environment variable, "
"possibly combined with --no-clean"
),
gone_in="21.3",
issue=8333,
)
if "2020-resolver" in options.features_enabled:
logger.warning(
"--use-feature=2020-resolver no longer has any effect, "
"since it is now the default dependency resolver in pip. "
"This will become an error in pip 21.0."
)
try:
status = self.run(options, args)
assert isinstance(status, int)
return status
except PreviousBuildDirError as exc:
logger.critical(str(exc))
logger.debug("Exception information:", exc_info=True)
return PREVIOUS_BUILD_DIR_ERROR
except (
InstallationError,
UninstallationError,
BadCommand,
NetworkConnectionError,
) as exc:
logger.critical(str(exc))
logger.debug("Exception information:", exc_info=True)
return ERROR
except CommandError as exc:
logger.critical("%s", exc)
logger.debug("Exception information:", exc_info=True)
return ERROR
except BrokenStdoutLoggingError:
# Bypass our logger and write any remaining messages to stderr
# because stdout no longer works.
print("ERROR: Pipe to stdout was broken", file=sys.stderr)
if level_number <= logging.DEBUG:
traceback.print_exc(file=sys.stderr)
return ERROR
except KeyboardInterrupt:
logger.critical("Operation cancelled by user")
logger.debug("Exception information:", exc_info=True)
return ERROR
except BaseException:
logger.critical("Exception:", exc_info=True)
return UNKNOWN_ERROR
finally:
self.handle_pip_version_check(options)

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from contextlib import ExitStack, contextmanager
from typing import ContextManager, Iterator, TypeVar
_T = TypeVar("_T", covariant=True)
class CommandContextMixIn:
def __init__(self) -> None:
super().__init__()
self._in_main_context = False
self._main_context = ExitStack()
@contextmanager
def main_context(self) -> Iterator[None]:
assert not self._in_main_context
self._in_main_context = True
try:
with self._main_context:
yield
finally:
self._in_main_context = False
def enter_context(self, context_provider: ContextManager[_T]) -> _T:
assert self._in_main_context
return self._main_context.enter_context(context_provider)

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"""Primary application entrypoint.
"""
import locale
import logging
import os
import sys
from typing import List, Optional
from pip._internal.cli.autocompletion import autocomplete
from pip._internal.cli.main_parser import parse_command
from pip._internal.commands import create_command
from pip._internal.exceptions import PipError
from pip._internal.utils import deprecation
logger = logging.getLogger(__name__)
# Do not import and use main() directly! Using it directly is actively
# discouraged by pip's maintainers. The name, location and behavior of
# this function is subject to change, so calling it directly is not
# portable across different pip versions.
# In addition, running pip in-process is unsupported and unsafe. This is
# elaborated in detail at
# https://pip.pypa.io/en/stable/user_guide/#using-pip-from-your-program.
# That document also provides suggestions that should work for nearly
# all users that are considering importing and using main() directly.
# However, we know that certain users will still want to invoke pip
# in-process. If you understand and accept the implications of using pip
# in an unsupported manner, the best approach is to use runpy to avoid
# depending on the exact location of this entry point.
# The following example shows how to use runpy to invoke pip in that
# case:
#
# sys.argv = ["pip", your, args, here]
# runpy.run_module("pip", run_name="__main__")
#
# Note that this will exit the process after running, unlike a direct
# call to main. As it is not safe to do any processing after calling
# main, this should not be an issue in practice.
def main(args: Optional[List[str]] = None) -> int:
if args is None:
args = sys.argv[1:]
# Configure our deprecation warnings to be sent through loggers
deprecation.install_warning_logger()
autocomplete()
try:
cmd_name, cmd_args = parse_command(args)
except PipError as exc:
sys.stderr.write(f"ERROR: {exc}")
sys.stderr.write(os.linesep)
sys.exit(1)
# Needed for locale.getpreferredencoding(False) to work
# in pip._internal.utils.encoding.auto_decode
try:
locale.setlocale(locale.LC_ALL, "")
except locale.Error as e:
# setlocale can apparently crash if locale are uninitialized
logger.debug("Ignoring error %s when setting locale", e)
command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
return command.main(cmd_args)

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"""A single place for constructing and exposing the main parser
"""
import os
import sys
from typing import List, Tuple
from pip._internal.cli import cmdoptions
from pip._internal.cli.parser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
from pip._internal.commands import commands_dict, get_similar_commands
from pip._internal.exceptions import CommandError
from pip._internal.utils.misc import get_pip_version, get_prog
__all__ = ["create_main_parser", "parse_command"]
def create_main_parser() -> ConfigOptionParser:
"""Creates and returns the main parser for pip's CLI"""
parser = ConfigOptionParser(
usage="\n%prog <command> [options]",
add_help_option=False,
formatter=UpdatingDefaultsHelpFormatter(),
name="global",
prog=get_prog(),
)
parser.disable_interspersed_args()
parser.version = get_pip_version()
# add the general options
gen_opts = cmdoptions.make_option_group(cmdoptions.general_group, parser)
parser.add_option_group(gen_opts)
# so the help formatter knows
parser.main = True # type: ignore
# create command listing for description
description = [""] + [
f"{name:27} {command_info.summary}"
for name, command_info in commands_dict.items()
]
parser.description = "\n".join(description)
return parser
def parse_command(args: List[str]) -> Tuple[str, List[str]]:
parser = create_main_parser()
# Note: parser calls disable_interspersed_args(), so the result of this
# call is to split the initial args into the general options before the
# subcommand and everything else.
# For example:
# args: ['--timeout=5', 'install', '--user', 'INITools']
# general_options: ['--timeout==5']
# args_else: ['install', '--user', 'INITools']
general_options, args_else = parser.parse_args(args)
# --version
if general_options.version:
sys.stdout.write(parser.version)
sys.stdout.write(os.linesep)
sys.exit()
# pip || pip help -> print_help()
if not args_else or (args_else[0] == "help" and len(args_else) == 1):
parser.print_help()
sys.exit()
# the subcommand name
cmd_name = args_else[0]
if cmd_name not in commands_dict:
guess = get_similar_commands(cmd_name)
msg = [f'unknown command "{cmd_name}"']
if guess:
msg.append(f'maybe you meant "{guess}"')
raise CommandError(" - ".join(msg))
# all the args without the subcommand
cmd_args = args[:]
cmd_args.remove(cmd_name)
return cmd_name, cmd_args

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"""Base option parser setup"""
import logging
import optparse
import shutil
import sys
import textwrap
from contextlib import suppress
from typing import Any, Dict, Iterator, List, Tuple
from pip._internal.cli.status_codes import UNKNOWN_ERROR
from pip._internal.configuration import Configuration, ConfigurationError
from pip._internal.utils.misc import redact_auth_from_url, strtobool
logger = logging.getLogger(__name__)
class PrettyHelpFormatter(optparse.IndentedHelpFormatter):
"""A prettier/less verbose help formatter for optparse."""
def __init__(self, *args: Any, **kwargs: Any) -> None:
# help position must be aligned with __init__.parseopts.description
kwargs["max_help_position"] = 30
kwargs["indent_increment"] = 1
kwargs["width"] = shutil.get_terminal_size()[0] - 2
super().__init__(*args, **kwargs)
def format_option_strings(self, option: optparse.Option) -> str:
return self._format_option_strings(option)
def _format_option_strings(
self, option: optparse.Option, mvarfmt: str = " <{}>", optsep: str = ", "
) -> str:
"""
Return a comma-separated list of option strings and metavars.
:param option: tuple of (short opt, long opt), e.g: ('-f', '--format')
:param mvarfmt: metavar format string
:param optsep: separator
"""
opts = []
if option._short_opts:
opts.append(option._short_opts[0])
if option._long_opts:
opts.append(option._long_opts[0])
if len(opts) > 1:
opts.insert(1, optsep)
if option.takes_value():
assert option.dest is not None
metavar = option.metavar or option.dest.lower()
opts.append(mvarfmt.format(metavar.lower()))
return "".join(opts)
def format_heading(self, heading: str) -> str:
if heading == "Options":
return ""
return heading + ":\n"
def format_usage(self, usage: str) -> str:
"""
Ensure there is only one newline between usage and the first heading
if there is no description.
"""
msg = "\nUsage: {}\n".format(self.indent_lines(textwrap.dedent(usage), " "))
return msg
def format_description(self, description: str) -> str:
# leave full control over description to us
if description:
if hasattr(self.parser, "main"):
label = "Commands"
else:
label = "Description"
# some doc strings have initial newlines, some don't
description = description.lstrip("\n")
# some doc strings have final newlines and spaces, some don't
description = description.rstrip()
# dedent, then reindent
description = self.indent_lines(textwrap.dedent(description), " ")
description = f"{label}:\n{description}\n"
return description
else:
return ""
def format_epilog(self, epilog: str) -> str:
# leave full control over epilog to us
if epilog:
return epilog
else:
return ""
def indent_lines(self, text: str, indent: str) -> str:
new_lines = [indent + line for line in text.split("\n")]
return "\n".join(new_lines)
class UpdatingDefaultsHelpFormatter(PrettyHelpFormatter):
"""Custom help formatter for use in ConfigOptionParser.
This is updates the defaults before expanding them, allowing
them to show up correctly in the help listing.
Also redact auth from url type options
"""
def expand_default(self, option: optparse.Option) -> str:
default_values = None
if self.parser is not None:
assert isinstance(self.parser, ConfigOptionParser)
self.parser._update_defaults(self.parser.defaults)
assert option.dest is not None
default_values = self.parser.defaults.get(option.dest)
help_text = super().expand_default(option)
if default_values and option.metavar == "URL":
if isinstance(default_values, str):
default_values = [default_values]
# If its not a list, we should abort and just return the help text
if not isinstance(default_values, list):
default_values = []
for val in default_values:
help_text = help_text.replace(val, redact_auth_from_url(val))
return help_text
class CustomOptionParser(optparse.OptionParser):
def insert_option_group(
self, idx: int, *args: Any, **kwargs: Any
) -> optparse.OptionGroup:
"""Insert an OptionGroup at a given position."""
group = self.add_option_group(*args, **kwargs)
self.option_groups.pop()
self.option_groups.insert(idx, group)
return group
@property
def option_list_all(self) -> List[optparse.Option]:
"""Get a list of all options, including those in option groups."""
res = self.option_list[:]
for i in self.option_groups:
res.extend(i.option_list)
return res
class ConfigOptionParser(CustomOptionParser):
"""Custom option parser which updates its defaults by checking the
configuration files and environmental variables"""
def __init__(
self,
*args: Any,
name: str,
isolated: bool = False,
**kwargs: Any,
) -> None:
self.name = name
self.config = Configuration(isolated)
assert self.name
super().__init__(*args, **kwargs)
def check_default(self, option: optparse.Option, key: str, val: Any) -> Any:
try:
return option.check_value(key, val)
except optparse.OptionValueError as exc:
print(f"An error occurred during configuration: {exc}")
sys.exit(3)
def _get_ordered_configuration_items(self) -> Iterator[Tuple[str, Any]]:
# Configuration gives keys in an unordered manner. Order them.
override_order = ["global", self.name, ":env:"]
# Pool the options into different groups
section_items: Dict[str, List[Tuple[str, Any]]] = {
name: [] for name in override_order
}
for section_key, val in self.config.items():
# ignore empty values
if not val:
logger.debug(
"Ignoring configuration key '%s' as it's value is empty.",
section_key,
)
continue
section, key = section_key.split(".", 1)
if section in override_order:
section_items[section].append((key, val))
# Yield each group in their override order
for section in override_order:
for key, val in section_items[section]:
yield key, val
def _update_defaults(self, defaults: Dict[str, Any]) -> Dict[str, Any]:
"""Updates the given defaults with values from the config files and
the environ. Does a little special handling for certain types of
options (lists)."""
# Accumulate complex default state.
self.values = optparse.Values(self.defaults)
late_eval = set()
# Then set the options with those values
for key, val in self._get_ordered_configuration_items():
# '--' because configuration supports only long names
option = self.get_option("--" + key)
# Ignore options not present in this parser. E.g. non-globals put
# in [global] by users that want them to apply to all applicable
# commands.
if option is None:
continue
assert option.dest is not None
if option.action in ("store_true", "store_false"):
try:
val = strtobool(val)
except ValueError:
self.error(
"{} is not a valid value for {} option, " # noqa
"please specify a boolean value like yes/no, "
"true/false or 1/0 instead.".format(val, key)
)
elif option.action == "count":
with suppress(ValueError):
val = strtobool(val)
with suppress(ValueError):
val = int(val)
if not isinstance(val, int) or val < 0:
self.error(
"{} is not a valid value for {} option, " # noqa
"please instead specify either a non-negative integer "
"or a boolean value like yes/no or false/true "
"which is equivalent to 1/0.".format(val, key)
)
elif option.action == "append":
val = val.split()
val = [self.check_default(option, key, v) for v in val]
elif option.action == "callback":
assert option.callback is not None
late_eval.add(option.dest)
opt_str = option.get_opt_string()
val = option.convert_value(opt_str, val)
# From take_action
args = option.callback_args or ()
kwargs = option.callback_kwargs or {}
option.callback(option, opt_str, val, self, *args, **kwargs)
else:
val = self.check_default(option, key, val)
defaults[option.dest] = val
for key in late_eval:
defaults[key] = getattr(self.values, key)
self.values = None
return defaults
def get_default_values(self) -> optparse.Values:
"""Overriding to make updating the defaults after instantiation of
the option parser possible, _update_defaults() does the dirty work."""
if not self.process_default_values:
# Old, pre-Optik 1.5 behaviour.
return optparse.Values(self.defaults)
# Load the configuration, or error out in case of an error
try:
self.config.load()
except ConfigurationError as err:
self.exit(UNKNOWN_ERROR, str(err))
defaults = self._update_defaults(self.defaults.copy()) # ours
for option in self._get_all_options():
assert option.dest is not None
default = defaults.get(option.dest)
if isinstance(default, str):
opt_str = option.get_opt_string()
defaults[option.dest] = option.check_value(opt_str, default)
return optparse.Values(defaults)
def error(self, msg: str) -> None:
self.print_usage(sys.stderr)
self.exit(UNKNOWN_ERROR, f"{msg}\n")

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import itertools
import sys
from signal import SIGINT, default_int_handler, signal
from typing import Any
from pip._vendor.progress.bar import Bar, FillingCirclesBar, IncrementalBar
from pip._vendor.progress.spinner import Spinner
from pip._internal.utils.compat import WINDOWS
from pip._internal.utils.logging import get_indentation
from pip._internal.utils.misc import format_size
try:
from pip._vendor import colorama
# Lots of different errors can come from this, including SystemError and
# ImportError.
except Exception:
colorama = None
def _select_progress_class(preferred: Bar, fallback: Bar) -> Bar:
encoding = getattr(preferred.file, "encoding", None)
# If we don't know what encoding this file is in, then we'll just assume
# that it doesn't support unicode and use the ASCII bar.
if not encoding:
return fallback
# Collect all of the possible characters we want to use with the preferred
# bar.
characters = [
getattr(preferred, "empty_fill", ""),
getattr(preferred, "fill", ""),
]
characters += list(getattr(preferred, "phases", []))
# Try to decode the characters we're using for the bar using the encoding
# of the given file, if this works then we'll assume that we can use the
# fancier bar and if not we'll fall back to the plaintext bar.
try:
"".join(characters).encode(encoding)
except UnicodeEncodeError:
return fallback
else:
return preferred
_BaseBar: Any = _select_progress_class(IncrementalBar, Bar)
class InterruptibleMixin:
"""
Helper to ensure that self.finish() gets called on keyboard interrupt.
This allows downloads to be interrupted without leaving temporary state
(like hidden cursors) behind.
This class is similar to the progress library's existing SigIntMixin
helper, but as of version 1.2, that helper has the following problems:
1. It calls sys.exit().
2. It discards the existing SIGINT handler completely.
3. It leaves its own handler in place even after an uninterrupted finish,
which will have unexpected delayed effects if the user triggers an
unrelated keyboard interrupt some time after a progress-displaying
download has already completed, for example.
"""
def __init__(self, *args: Any, **kwargs: Any) -> None:
"""
Save the original SIGINT handler for later.
"""
# https://github.com/python/mypy/issues/5887
super().__init__(*args, **kwargs) # type: ignore
self.original_handler = signal(SIGINT, self.handle_sigint)
# If signal() returns None, the previous handler was not installed from
# Python, and we cannot restore it. This probably should not happen,
# but if it does, we must restore something sensible instead, at least.
# The least bad option should be Python's default SIGINT handler, which
# just raises KeyboardInterrupt.
if self.original_handler is None:
self.original_handler = default_int_handler
def finish(self) -> None:
"""
Restore the original SIGINT handler after finishing.
This should happen regardless of whether the progress display finishes
normally, or gets interrupted.
"""
super().finish() # type: ignore
signal(SIGINT, self.original_handler)
def handle_sigint(self, signum, frame): # type: ignore
"""
Call self.finish() before delegating to the original SIGINT handler.
This handler should only be in place while the progress display is
active.
"""
self.finish()
self.original_handler(signum, frame)
class SilentBar(Bar):
def update(self) -> None:
pass
class BlueEmojiBar(IncrementalBar):
suffix = "%(percent)d%%"
bar_prefix = " "
bar_suffix = " "
phases = ("\U0001F539", "\U0001F537", "\U0001F535")
class DownloadProgressMixin:
def __init__(self, *args: Any, **kwargs: Any) -> None:
# https://github.com/python/mypy/issues/5887
super().__init__(*args, **kwargs) # type: ignore
self.message: str = (" " * (get_indentation() + 2)) + self.message
@property
def downloaded(self) -> str:
return format_size(self.index) # type: ignore
@property
def download_speed(self) -> str:
# Avoid zero division errors...
if self.avg == 0.0: # type: ignore
return "..."
return format_size(1 / self.avg) + "/s" # type: ignore
@property
def pretty_eta(self) -> str:
if self.eta: # type: ignore
return f"eta {self.eta_td}" # type: ignore
return ""
def iter(self, it): # type: ignore
for x in it:
yield x
# B305 is incorrectly raised here
# https://github.com/PyCQA/flake8-bugbear/issues/59
self.next(len(x)) # noqa: B305
self.finish()
class WindowsMixin:
def __init__(self, *args: Any, **kwargs: Any) -> None:
# The Windows terminal does not support the hide/show cursor ANSI codes
# even with colorama. So we'll ensure that hide_cursor is False on
# Windows.
# This call needs to go before the super() call, so that hide_cursor
# is set in time. The base progress bar class writes the "hide cursor"
# code to the terminal in its init, so if we don't set this soon
# enough, we get a "hide" with no corresponding "show"...
if WINDOWS and self.hide_cursor: # type: ignore
self.hide_cursor = False
# https://github.com/python/mypy/issues/5887
super().__init__(*args, **kwargs) # type: ignore
# Check if we are running on Windows and we have the colorama module,
# if we do then wrap our file with it.
if WINDOWS and colorama:
self.file = colorama.AnsiToWin32(self.file) # type: ignore
# The progress code expects to be able to call self.file.isatty()
# but the colorama.AnsiToWin32() object doesn't have that, so we'll
# add it.
self.file.isatty = lambda: self.file.wrapped.isatty()
# The progress code expects to be able to call self.file.flush()
# but the colorama.AnsiToWin32() object doesn't have that, so we'll
# add it.
self.file.flush = lambda: self.file.wrapped.flush()
class BaseDownloadProgressBar(WindowsMixin, InterruptibleMixin, DownloadProgressMixin):
file = sys.stdout
message = "%(percent)d%%"
suffix = "%(downloaded)s %(download_speed)s %(pretty_eta)s"
class DefaultDownloadProgressBar(BaseDownloadProgressBar, _BaseBar):
pass
class DownloadSilentBar(BaseDownloadProgressBar, SilentBar):
pass
class DownloadBar(BaseDownloadProgressBar, Bar):
pass
class DownloadFillingCirclesBar(BaseDownloadProgressBar, FillingCirclesBar):
pass
class DownloadBlueEmojiProgressBar(BaseDownloadProgressBar, BlueEmojiBar):
pass
class DownloadProgressSpinner(
WindowsMixin, InterruptibleMixin, DownloadProgressMixin, Spinner
):
file = sys.stdout
suffix = "%(downloaded)s %(download_speed)s"
def next_phase(self) -> str:
if not hasattr(self, "_phaser"):
self._phaser = itertools.cycle(self.phases)
return next(self._phaser)
def update(self) -> None:
message = self.message % self
phase = self.next_phase()
suffix = self.suffix % self
line = "".join(
[
message,
" " if message else "",
phase,
" " if suffix else "",
suffix,
]
)
self.writeln(line)
BAR_TYPES = {
"off": (DownloadSilentBar, DownloadSilentBar),
"on": (DefaultDownloadProgressBar, DownloadProgressSpinner),
"ascii": (DownloadBar, DownloadProgressSpinner),
"pretty": (DownloadFillingCirclesBar, DownloadProgressSpinner),
"emoji": (DownloadBlueEmojiProgressBar, DownloadProgressSpinner),
}
def DownloadProgressProvider(progress_bar, max=None): # type: ignore
if max is None or max == 0:
return BAR_TYPES[progress_bar][1]().iter
else:
return BAR_TYPES[progress_bar][0](max=max).iter

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"""Contains the Command base classes that depend on PipSession.
The classes in this module are in a separate module so the commands not
needing download / PackageFinder capability don't unnecessarily import the
PackageFinder machinery and all its vendored dependencies, etc.
"""
import logging
import os
import sys
from functools import partial
from optparse import Values
from typing import Any, List, Optional, Tuple
from pip._internal.cache import WheelCache
from pip._internal.cli import cmdoptions
from pip._internal.cli.base_command import Command
from pip._internal.cli.command_context import CommandContextMixIn
from pip._internal.exceptions import CommandError, PreviousBuildDirError
from pip._internal.index.collector import LinkCollector
from pip._internal.index.package_finder import PackageFinder
from pip._internal.models.selection_prefs import SelectionPreferences
from pip._internal.models.target_python import TargetPython
from pip._internal.network.session import PipSession
from pip._internal.operations.prepare import RequirementPreparer
from pip._internal.req.constructors import (
install_req_from_editable,
install_req_from_line,
install_req_from_parsed_requirement,
install_req_from_req_string,
)
from pip._internal.req.req_file import parse_requirements
from pip._internal.req.req_install import InstallRequirement
from pip._internal.req.req_tracker import RequirementTracker
from pip._internal.resolution.base import BaseResolver
from pip._internal.self_outdated_check import pip_self_version_check
from pip._internal.utils.temp_dir import (
TempDirectory,
TempDirectoryTypeRegistry,
tempdir_kinds,
)
from pip._internal.utils.virtualenv import running_under_virtualenv
logger = logging.getLogger(__name__)
class SessionCommandMixin(CommandContextMixIn):
"""
A class mixin for command classes needing _build_session().
"""
def __init__(self) -> None:
super().__init__()
self._session: Optional[PipSession] = None
@classmethod
def _get_index_urls(cls, options: Values) -> Optional[List[str]]:
"""Return a list of index urls from user-provided options."""
index_urls = []
if not getattr(options, "no_index", False):
url = getattr(options, "index_url", None)
if url:
index_urls.append(url)
urls = getattr(options, "extra_index_urls", None)
if urls:
index_urls.extend(urls)
# Return None rather than an empty list
return index_urls or None
def get_default_session(self, options: Values) -> PipSession:
"""Get a default-managed session."""
if self._session is None:
self._session = self.enter_context(self._build_session(options))
# there's no type annotation on requests.Session, so it's
# automatically ContextManager[Any] and self._session becomes Any,
# then https://github.com/python/mypy/issues/7696 kicks in
assert self._session is not None
return self._session
def _build_session(
self,
options: Values,
retries: Optional[int] = None,
timeout: Optional[int] = None,
) -> PipSession:
assert not options.cache_dir or os.path.isabs(options.cache_dir)
session = PipSession(
cache=(
os.path.join(options.cache_dir, "http") if options.cache_dir else None
),
retries=retries if retries is not None else options.retries,
trusted_hosts=options.trusted_hosts,
index_urls=self._get_index_urls(options),
)
# Handle custom ca-bundles from the user
if options.cert:
session.verify = options.cert
# Handle SSL client certificate
if options.client_cert:
session.cert = options.client_cert
# Handle timeouts
if options.timeout or timeout:
session.timeout = timeout if timeout is not None else options.timeout
# Handle configured proxies
if options.proxy:
session.proxies = {
"http": options.proxy,
"https": options.proxy,
}
# Determine if we can prompt the user for authentication or not
session.auth.prompting = not options.no_input
return session
class IndexGroupCommand(Command, SessionCommandMixin):
"""
Abstract base class for commands with the index_group options.
This also corresponds to the commands that permit the pip version check.
"""
def handle_pip_version_check(self, options: Values) -> None:
"""
Do the pip version check if not disabled.
This overrides the default behavior of not doing the check.
"""
# Make sure the index_group options are present.
assert hasattr(options, "no_index")
if options.disable_pip_version_check or options.no_index:
return
# Otherwise, check if we're using the latest version of pip available.
session = self._build_session(
options, retries=0, timeout=min(5, options.timeout)
)
with session:
pip_self_version_check(session, options)
KEEPABLE_TEMPDIR_TYPES = [
tempdir_kinds.BUILD_ENV,
tempdir_kinds.EPHEM_WHEEL_CACHE,
tempdir_kinds.REQ_BUILD,
]
def warn_if_run_as_root() -> None:
"""Output a warning for sudo users on Unix.
In a virtual environment, sudo pip still writes to virtualenv.
On Windows, users may run pip as Administrator without issues.
This warning only applies to Unix root users outside of virtualenv.
"""
if running_under_virtualenv():
return
if not hasattr(os, "getuid"):
return
# On Windows, there are no "system managed" Python packages. Installing as
# Administrator via pip is the correct way of updating system environments.
#
# We choose sys.platform over utils.compat.WINDOWS here to enable Mypy platform
# checks: https://mypy.readthedocs.io/en/stable/common_issues.html
if sys.platform == "win32" or sys.platform == "cygwin":
return
if sys.platform == "darwin" or sys.platform == "linux":
if os.getuid() != 0:
return
logger.warning(
"Running pip as the 'root' user can result in broken permissions and "
"conflicting behaviour with the system package manager. "
"It is recommended to use a virtual environment instead: "
"https://pip.pypa.io/warnings/venv"
)
def with_cleanup(func: Any) -> Any:
"""Decorator for common logic related to managing temporary
directories.
"""
def configure_tempdir_registry(registry: TempDirectoryTypeRegistry) -> None:
for t in KEEPABLE_TEMPDIR_TYPES:
registry.set_delete(t, False)
def wrapper(
self: RequirementCommand, options: Values, args: List[Any]
) -> Optional[int]:
assert self.tempdir_registry is not None
if options.no_clean:
configure_tempdir_registry(self.tempdir_registry)
try:
return func(self, options, args)
except PreviousBuildDirError:
# This kind of conflict can occur when the user passes an explicit
# build directory with a pre-existing folder. In that case we do
# not want to accidentally remove it.
configure_tempdir_registry(self.tempdir_registry)
raise
return wrapper
class RequirementCommand(IndexGroupCommand):
def __init__(self, *args: Any, **kw: Any) -> None:
super().__init__(*args, **kw)
self.cmd_opts.add_option(cmdoptions.no_clean())
@staticmethod
def determine_resolver_variant(options: Values) -> str:
"""Determines which resolver should be used, based on the given options."""
if "legacy-resolver" in options.deprecated_features_enabled:
return "legacy"
return "2020-resolver"
@classmethod
def make_requirement_preparer(
cls,
temp_build_dir: TempDirectory,
options: Values,
req_tracker: RequirementTracker,
session: PipSession,
finder: PackageFinder,
use_user_site: bool,
download_dir: Optional[str] = None,
) -> RequirementPreparer:
"""
Create a RequirementPreparer instance for the given parameters.
"""
temp_build_dir_path = temp_build_dir.path
assert temp_build_dir_path is not None
resolver_variant = cls.determine_resolver_variant(options)
if resolver_variant == "2020-resolver":
lazy_wheel = "fast-deps" in options.features_enabled
if lazy_wheel:
logger.warning(
"pip is using lazily downloaded wheels using HTTP "
"range requests to obtain dependency information. "
"This experimental feature is enabled through "
"--use-feature=fast-deps and it is not ready for "
"production."
)
else:
lazy_wheel = False
if "fast-deps" in options.features_enabled:
logger.warning(
"fast-deps has no effect when used with the legacy resolver."
)
return RequirementPreparer(
build_dir=temp_build_dir_path,
src_dir=options.src_dir,
download_dir=download_dir,
build_isolation=options.build_isolation,
req_tracker=req_tracker,
session=session,
progress_bar=options.progress_bar,
finder=finder,
require_hashes=options.require_hashes,
use_user_site=use_user_site,
lazy_wheel=lazy_wheel,
in_tree_build="in-tree-build" in options.features_enabled,
)
@classmethod
def make_resolver(
cls,
preparer: RequirementPreparer,
finder: PackageFinder,
options: Values,
wheel_cache: Optional[WheelCache] = None,
use_user_site: bool = False,
ignore_installed: bool = True,
ignore_requires_python: bool = False,
force_reinstall: bool = False,
upgrade_strategy: str = "to-satisfy-only",
use_pep517: Optional[bool] = None,
py_version_info: Optional[Tuple[int, ...]] = None,
) -> BaseResolver:
"""
Create a Resolver instance for the given parameters.
"""
make_install_req = partial(
install_req_from_req_string,
isolated=options.isolated_mode,
use_pep517=use_pep517,
)
resolver_variant = cls.determine_resolver_variant(options)
# The long import name and duplicated invocation is needed to convince
# Mypy into correctly typechecking. Otherwise it would complain the
# "Resolver" class being redefined.
if resolver_variant == "2020-resolver":
import pip._internal.resolution.resolvelib.resolver
return pip._internal.resolution.resolvelib.resolver.Resolver(
preparer=preparer,
finder=finder,
wheel_cache=wheel_cache,
make_install_req=make_install_req,
use_user_site=use_user_site,
ignore_dependencies=options.ignore_dependencies,
ignore_installed=ignore_installed,
ignore_requires_python=ignore_requires_python,
force_reinstall=force_reinstall,
upgrade_strategy=upgrade_strategy,
py_version_info=py_version_info,
)
import pip._internal.resolution.legacy.resolver
return pip._internal.resolution.legacy.resolver.Resolver(
preparer=preparer,
finder=finder,
wheel_cache=wheel_cache,
make_install_req=make_install_req,
use_user_site=use_user_site,
ignore_dependencies=options.ignore_dependencies,
ignore_installed=ignore_installed,
ignore_requires_python=ignore_requires_python,
force_reinstall=force_reinstall,
upgrade_strategy=upgrade_strategy,
py_version_info=py_version_info,
)
def get_requirements(
self,
args: List[str],
options: Values,
finder: PackageFinder,
session: PipSession,
) -> List[InstallRequirement]:
"""
Parse command-line arguments into the corresponding requirements.
"""
requirements: List[InstallRequirement] = []
for filename in options.constraints:
for parsed_req in parse_requirements(
filename,
constraint=True,
finder=finder,
options=options,
session=session,
):
req_to_add = install_req_from_parsed_requirement(
parsed_req,
isolated=options.isolated_mode,
user_supplied=False,
)
requirements.append(req_to_add)
for req in args:
req_to_add = install_req_from_line(
req,
None,
isolated=options.isolated_mode,
use_pep517=options.use_pep517,
user_supplied=True,
)
requirements.append(req_to_add)
for req in options.editables:
req_to_add = install_req_from_editable(
req,
user_supplied=True,
isolated=options.isolated_mode,
use_pep517=options.use_pep517,
)
requirements.append(req_to_add)
# NOTE: options.require_hashes may be set if --require-hashes is True
for filename in options.requirements:
for parsed_req in parse_requirements(
filename, finder=finder, options=options, session=session
):
req_to_add = install_req_from_parsed_requirement(
parsed_req,
isolated=options.isolated_mode,
use_pep517=options.use_pep517,
user_supplied=True,
)
requirements.append(req_to_add)
# If any requirement has hash options, enable hash checking.
if any(req.has_hash_options for req in requirements):
options.require_hashes = True
if not (args or options.editables or options.requirements):
opts = {"name": self.name}
if options.find_links:
raise CommandError(
"You must give at least one requirement to {name} "
'(maybe you meant "pip {name} {links}"?)'.format(
**dict(opts, links=" ".join(options.find_links))
)
)
else:
raise CommandError(
"You must give at least one requirement to {name} "
'(see "pip help {name}")'.format(**opts)
)
return requirements
@staticmethod
def trace_basic_info(finder: PackageFinder) -> None:
"""
Trace basic information about the provided objects.
"""
# Display where finder is looking for packages
search_scope = finder.search_scope
locations = search_scope.get_formatted_locations()
if locations:
logger.info(locations)
def _build_package_finder(
self,
options: Values,
session: PipSession,
target_python: Optional[TargetPython] = None,
ignore_requires_python: Optional[bool] = None,
) -> PackageFinder:
"""
Create a package finder appropriate to this requirement command.
:param ignore_requires_python: Whether to ignore incompatible
"Requires-Python" values in links. Defaults to False.
"""
link_collector = LinkCollector.create(session, options=options)
selection_prefs = SelectionPreferences(
allow_yanked=True,
format_control=options.format_control,
allow_all_prereleases=options.pre,
prefer_binary=options.prefer_binary,
ignore_requires_python=ignore_requires_python,
)
return PackageFinder.create(
link_collector=link_collector,
selection_prefs=selection_prefs,
target_python=target_python,
)

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import contextlib
import itertools
import logging
import sys
import time
from typing import IO, Iterator
from pip._vendor.progress import HIDE_CURSOR, SHOW_CURSOR
from pip._internal.utils.compat import WINDOWS
from pip._internal.utils.logging import get_indentation
logger = logging.getLogger(__name__)
class SpinnerInterface:
def spin(self) -> None:
raise NotImplementedError()
def finish(self, final_status: str) -> None:
raise NotImplementedError()
class InteractiveSpinner(SpinnerInterface):
def __init__(
self,
message: str,
file: IO[str] = None,
spin_chars: str = "-\\|/",
# Empirically, 8 updates/second looks nice
min_update_interval_seconds: float = 0.125,
):
self._message = message
if file is None:
file = sys.stdout
self._file = file
self._rate_limiter = RateLimiter(min_update_interval_seconds)
self._finished = False
self._spin_cycle = itertools.cycle(spin_chars)
self._file.write(" " * get_indentation() + self._message + " ... ")
self._width = 0
def _write(self, status: str) -> None:
assert not self._finished
# Erase what we wrote before by backspacing to the beginning, writing
# spaces to overwrite the old text, and then backspacing again
backup = "\b" * self._width
self._file.write(backup + " " * self._width + backup)
# Now we have a blank slate to add our status
self._file.write(status)
self._width = len(status)
self._file.flush()
self._rate_limiter.reset()
def spin(self) -> None:
if self._finished:
return
if not self._rate_limiter.ready():
return
self._write(next(self._spin_cycle))
def finish(self, final_status: str) -> None:
if self._finished:
return
self._write(final_status)
self._file.write("\n")
self._file.flush()
self._finished = True
# Used for dumb terminals, non-interactive installs (no tty), etc.
# We still print updates occasionally (once every 60 seconds by default) to
# act as a keep-alive for systems like Travis-CI that take lack-of-output as
# an indication that a task has frozen.
class NonInteractiveSpinner(SpinnerInterface):
def __init__(self, message: str, min_update_interval_seconds: float = 60.0) -> None:
self._message = message
self._finished = False
self._rate_limiter = RateLimiter(min_update_interval_seconds)
self._update("started")
def _update(self, status: str) -> None:
assert not self._finished
self._rate_limiter.reset()
logger.info("%s: %s", self._message, status)
def spin(self) -> None:
if self._finished:
return
if not self._rate_limiter.ready():
return
self._update("still running...")
def finish(self, final_status: str) -> None:
if self._finished:
return
self._update(f"finished with status '{final_status}'")
self._finished = True
class RateLimiter:
def __init__(self, min_update_interval_seconds: float) -> None:
self._min_update_interval_seconds = min_update_interval_seconds
self._last_update: float = 0
def ready(self) -> bool:
now = time.time()
delta = now - self._last_update
return delta >= self._min_update_interval_seconds
def reset(self) -> None:
self._last_update = time.time()
@contextlib.contextmanager
def open_spinner(message: str) -> Iterator[SpinnerInterface]:
# Interactive spinner goes directly to sys.stdout rather than being routed
# through the logging system, but it acts like it has level INFO,
# i.e. it's only displayed if we're at level INFO or better.
# Non-interactive spinner goes through the logging system, so it is always
# in sync with logging configuration.
if sys.stdout.isatty() and logger.getEffectiveLevel() <= logging.INFO:
spinner: SpinnerInterface = InteractiveSpinner(message)
else:
spinner = NonInteractiveSpinner(message)
try:
with hidden_cursor(sys.stdout):
yield spinner
except KeyboardInterrupt:
spinner.finish("canceled")
raise
except Exception:
spinner.finish("error")
raise
else:
spinner.finish("done")
@contextlib.contextmanager
def hidden_cursor(file: IO[str]) -> Iterator[None]:
# The Windows terminal does not support the hide/show cursor ANSI codes,
# even via colorama. So don't even try.
if WINDOWS:
yield
# We don't want to clutter the output with control characters if we're
# writing to a file, or if the user is running with --quiet.
# See https://github.com/pypa/pip/issues/3418
elif not file.isatty() or logger.getEffectiveLevel() > logging.INFO:
yield
else:
file.write(HIDE_CURSOR)
try:
yield
finally:
file.write(SHOW_CURSOR)

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SUCCESS = 0
ERROR = 1
UNKNOWN_ERROR = 2
VIRTUALENV_NOT_FOUND = 3
PREVIOUS_BUILD_DIR_ERROR = 4
NO_MATCHES_FOUND = 23

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"""
Package containing all pip commands
"""
import importlib
from collections import OrderedDict, namedtuple
from typing import Any, Dict, Optional
from pip._internal.cli.base_command import Command
CommandInfo = namedtuple('CommandInfo', 'module_path, class_name, summary')
# The ordering matters for help display.
# Also, even though the module path starts with the same
# "pip._internal.commands" prefix in each case, we include the full path
# because it makes testing easier (specifically when modifying commands_dict
# in test setup / teardown by adding info for a FakeCommand class defined
# in a test-related module).
# Finally, we need to pass an iterable of pairs here rather than a dict
# so that the ordering won't be lost when using Python 2.7.
commands_dict: Dict[str, CommandInfo] = OrderedDict([
('install', CommandInfo(
'pip._internal.commands.install', 'InstallCommand',
'Install packages.',
)),
('download', CommandInfo(
'pip._internal.commands.download', 'DownloadCommand',
'Download packages.',
)),
('uninstall', CommandInfo(
'pip._internal.commands.uninstall', 'UninstallCommand',
'Uninstall packages.',
)),
('freeze', CommandInfo(
'pip._internal.commands.freeze', 'FreezeCommand',
'Output installed packages in requirements format.',
)),
('list', CommandInfo(
'pip._internal.commands.list', 'ListCommand',
'List installed packages.',
)),
('show', CommandInfo(
'pip._internal.commands.show', 'ShowCommand',
'Show information about installed packages.',
)),
('check', CommandInfo(
'pip._internal.commands.check', 'CheckCommand',
'Verify installed packages have compatible dependencies.',
)),
('config', CommandInfo(
'pip._internal.commands.configuration', 'ConfigurationCommand',
'Manage local and global configuration.',
)),
('search', CommandInfo(
'pip._internal.commands.search', 'SearchCommand',
'Search PyPI for packages.',
)),
('cache', CommandInfo(
'pip._internal.commands.cache', 'CacheCommand',
"Inspect and manage pip's wheel cache.",
)),
('index', CommandInfo(
'pip._internal.commands.index', 'IndexCommand',
"Inspect information available from package indexes.",
)),
('wheel', CommandInfo(
'pip._internal.commands.wheel', 'WheelCommand',
'Build wheels from your requirements.',
)),
('hash', CommandInfo(
'pip._internal.commands.hash', 'HashCommand',
'Compute hashes of package archives.',
)),
('completion', CommandInfo(
'pip._internal.commands.completion', 'CompletionCommand',
'A helper command used for command completion.',
)),
('debug', CommandInfo(
'pip._internal.commands.debug', 'DebugCommand',
'Show information useful for debugging.',
)),
('help', CommandInfo(
'pip._internal.commands.help', 'HelpCommand',
'Show help for commands.',
)),
])
def create_command(name: str, **kwargs: Any) -> Command:
"""
Create an instance of the Command class with the given name.
"""
module_path, class_name, summary = commands_dict[name]
module = importlib.import_module(module_path)
command_class = getattr(module, class_name)
command = command_class(name=name, summary=summary, **kwargs)
return command
def get_similar_commands(name: str) -> Optional[str]:
"""Command name auto-correct."""
from difflib import get_close_matches
name = name.lower()
close_commands = get_close_matches(name, commands_dict.keys())
if close_commands:
return close_commands[0]
else:
return None

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import os
import textwrap
from optparse import Values
from typing import Any, List
import pip._internal.utils.filesystem as filesystem
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.exceptions import CommandError, PipError
from pip._internal.utils.logging import getLogger
logger = getLogger(__name__)
class CacheCommand(Command):
"""
Inspect and manage pip's wheel cache.
Subcommands:
- dir: Show the cache directory.
- info: Show information about the cache.
- list: List filenames of packages stored in the cache.
- remove: Remove one or more package from the cache.
- purge: Remove all items from the cache.
``<pattern>`` can be a glob expression or a package name.
"""
ignore_require_venv = True
usage = """
%prog dir
%prog info
%prog list [<pattern>] [--format=[human, abspath]]
%prog remove <pattern>
%prog purge
"""
def add_options(self) -> None:
self.cmd_opts.add_option(
'--format',
action='store',
dest='list_format',
default="human",
choices=('human', 'abspath'),
help="Select the output format among: human (default) or abspath"
)
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[Any]) -> int:
handlers = {
"dir": self.get_cache_dir,
"info": self.get_cache_info,
"list": self.list_cache_items,
"remove": self.remove_cache_items,
"purge": self.purge_cache,
}
if not options.cache_dir:
logger.error("pip cache commands can not "
"function since cache is disabled.")
return ERROR
# Determine action
if not args or args[0] not in handlers:
logger.error(
"Need an action (%s) to perform.",
", ".join(sorted(handlers)),
)
return ERROR
action = args[0]
# Error handling happens here, not in the action-handlers.
try:
handlers[action](options, args[1:])
except PipError as e:
logger.error(e.args[0])
return ERROR
return SUCCESS
def get_cache_dir(self, options: Values, args: List[Any]) -> None:
if args:
raise CommandError('Too many arguments')
logger.info(options.cache_dir)
def get_cache_info(self, options: Values, args: List[Any]) -> None:
if args:
raise CommandError('Too many arguments')
num_http_files = len(self._find_http_files(options))
num_packages = len(self._find_wheels(options, '*'))
http_cache_location = self._cache_dir(options, 'http')
wheels_cache_location = self._cache_dir(options, 'wheels')
http_cache_size = filesystem.format_directory_size(http_cache_location)
wheels_cache_size = filesystem.format_directory_size(
wheels_cache_location
)
message = textwrap.dedent("""
Package index page cache location: {http_cache_location}
Package index page cache size: {http_cache_size}
Number of HTTP files: {num_http_files}
Wheels location: {wheels_cache_location}
Wheels size: {wheels_cache_size}
Number of wheels: {package_count}
""").format(
http_cache_location=http_cache_location,
http_cache_size=http_cache_size,
num_http_files=num_http_files,
wheels_cache_location=wheels_cache_location,
package_count=num_packages,
wheels_cache_size=wheels_cache_size,
).strip()
logger.info(message)
def list_cache_items(self, options: Values, args: List[Any]) -> None:
if len(args) > 1:
raise CommandError('Too many arguments')
if args:
pattern = args[0]
else:
pattern = '*'
files = self._find_wheels(options, pattern)
if options.list_format == 'human':
self.format_for_human(files)
else:
self.format_for_abspath(files)
def format_for_human(self, files: List[str]) -> None:
if not files:
logger.info('Nothing cached.')
return
results = []
for filename in files:
wheel = os.path.basename(filename)
size = filesystem.format_file_size(filename)
results.append(f' - {wheel} ({size})')
logger.info('Cache contents:\n')
logger.info('\n'.join(sorted(results)))
def format_for_abspath(self, files: List[str]) -> None:
if not files:
return
results = []
for filename in files:
results.append(filename)
logger.info('\n'.join(sorted(results)))
def remove_cache_items(self, options: Values, args: List[Any]) -> None:
if len(args) > 1:
raise CommandError('Too many arguments')
if not args:
raise CommandError('Please provide a pattern')
files = self._find_wheels(options, args[0])
# Only fetch http files if no specific pattern given
if args[0] == '*':
files += self._find_http_files(options)
if not files:
raise CommandError('No matching packages')
for filename in files:
os.unlink(filename)
logger.verbose("Removed %s", filename)
logger.info("Files removed: %s", len(files))
def purge_cache(self, options: Values, args: List[Any]) -> None:
if args:
raise CommandError('Too many arguments')
return self.remove_cache_items(options, ['*'])
def _cache_dir(self, options: Values, subdir: str) -> str:
return os.path.join(options.cache_dir, subdir)
def _find_http_files(self, options: Values) -> List[str]:
http_dir = self._cache_dir(options, 'http')
return filesystem.find_files(http_dir, '*')
def _find_wheels(self, options: Values, pattern: str) -> List[str]:
wheel_dir = self._cache_dir(options, 'wheels')
# The wheel filename format, as specified in PEP 427, is:
# {distribution}-{version}(-{build})?-{python}-{abi}-{platform}.whl
#
# Additionally, non-alphanumeric values in the distribution are
# normalized to underscores (_), meaning hyphens can never occur
# before `-{version}`.
#
# Given that information:
# - If the pattern we're given contains a hyphen (-), the user is
# providing at least the version. Thus, we can just append `*.whl`
# to match the rest of it.
# - If the pattern we're given doesn't contain a hyphen (-), the
# user is only providing the name. Thus, we append `-*.whl` to
# match the hyphen before the version, followed by anything else.
#
# PEP 427: https://www.python.org/dev/peps/pep-0427/
pattern = pattern + ("*.whl" if "-" in pattern else "-*.whl")
return filesystem.find_files(wheel_dir, pattern)

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import logging
from optparse import Values
from typing import Any, List
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.operations.check import (
check_package_set,
create_package_set_from_installed,
)
from pip._internal.utils.misc import write_output
logger = logging.getLogger(__name__)
class CheckCommand(Command):
"""Verify installed packages have compatible dependencies."""
usage = """
%prog [options]"""
def run(self, options: Values, args: List[Any]) -> int:
package_set, parsing_probs = create_package_set_from_installed()
missing, conflicting = check_package_set(package_set)
for project_name in missing:
version = package_set[project_name].version
for dependency in missing[project_name]:
write_output(
"%s %s requires %s, which is not installed.",
project_name, version, dependency[0],
)
for project_name in conflicting:
version = package_set[project_name].version
for dep_name, dep_version, req in conflicting[project_name]:
write_output(
"%s %s has requirement %s, but you have %s %s.",
project_name, version, req, dep_name, dep_version,
)
if missing or conflicting or parsing_probs:
return ERROR
else:
write_output("No broken requirements found.")
return SUCCESS

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import sys
import textwrap
from optparse import Values
from typing import List
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.utils.misc import get_prog
BASE_COMPLETION = """
# pip {shell} completion start{script}# pip {shell} completion end
"""
COMPLETION_SCRIPTS = {
'bash': """
_pip_completion()
{{
COMPREPLY=( $( COMP_WORDS="${{COMP_WORDS[*]}}" \\
COMP_CWORD=$COMP_CWORD \\
PIP_AUTO_COMPLETE=1 $1 2>/dev/null ) )
}}
complete -o default -F _pip_completion {prog}
""",
'zsh': """
function _pip_completion {{
local words cword
read -Ac words
read -cn cword
reply=( $( COMP_WORDS="$words[*]" \\
COMP_CWORD=$(( cword-1 )) \\
PIP_AUTO_COMPLETE=1 $words[1] 2>/dev/null ))
}}
compctl -K _pip_completion {prog}
""",
'fish': """
function __fish_complete_pip
set -lx COMP_WORDS (commandline -o) ""
set -lx COMP_CWORD ( \\
math (contains -i -- (commandline -t) $COMP_WORDS)-1 \\
)
set -lx PIP_AUTO_COMPLETE 1
string split \\ -- (eval $COMP_WORDS[1])
end
complete -fa "(__fish_complete_pip)" -c {prog}
""",
}
class CompletionCommand(Command):
"""A helper command to be used for command completion."""
ignore_require_venv = True
def add_options(self) -> None:
self.cmd_opts.add_option(
'--bash', '-b',
action='store_const',
const='bash',
dest='shell',
help='Emit completion code for bash')
self.cmd_opts.add_option(
'--zsh', '-z',
action='store_const',
const='zsh',
dest='shell',
help='Emit completion code for zsh')
self.cmd_opts.add_option(
'--fish', '-f',
action='store_const',
const='fish',
dest='shell',
help='Emit completion code for fish')
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[str]) -> int:
"""Prints the completion code of the given shell"""
shells = COMPLETION_SCRIPTS.keys()
shell_options = ['--' + shell for shell in sorted(shells)]
if options.shell in shells:
script = textwrap.dedent(
COMPLETION_SCRIPTS.get(options.shell, '').format(
prog=get_prog())
)
print(BASE_COMPLETION.format(script=script, shell=options.shell))
return SUCCESS
else:
sys.stderr.write(
'ERROR: You must pass {}\n' .format(' or '.join(shell_options))
)
return SUCCESS

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import logging
import os
import subprocess
from optparse import Values
from typing import Any, List, Optional
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.configuration import (
Configuration,
Kind,
get_configuration_files,
kinds,
)
from pip._internal.exceptions import PipError
from pip._internal.utils.logging import indent_log
from pip._internal.utils.misc import get_prog, write_output
logger = logging.getLogger(__name__)
class ConfigurationCommand(Command):
"""
Manage local and global configuration.
Subcommands:
- list: List the active configuration (or from the file specified)
- edit: Edit the configuration file in an editor
- get: Get the value associated with name
- set: Set the name=value
- unset: Unset the value associated with name
- debug: List the configuration files and values defined under them
If none of --user, --global and --site are passed, a virtual
environment configuration file is used if one is active and the file
exists. Otherwise, all modifications happen on the to the user file by
default.
"""
ignore_require_venv = True
usage = """
%prog [<file-option>] list
%prog [<file-option>] [--editor <editor-path>] edit
%prog [<file-option>] get name
%prog [<file-option>] set name value
%prog [<file-option>] unset name
%prog [<file-option>] debug
"""
def add_options(self) -> None:
self.cmd_opts.add_option(
'--editor',
dest='editor',
action='store',
default=None,
help=(
'Editor to use to edit the file. Uses VISUAL or EDITOR '
'environment variables if not provided.'
)
)
self.cmd_opts.add_option(
'--global',
dest='global_file',
action='store_true',
default=False,
help='Use the system-wide configuration file only'
)
self.cmd_opts.add_option(
'--user',
dest='user_file',
action='store_true',
default=False,
help='Use the user configuration file only'
)
self.cmd_opts.add_option(
'--site',
dest='site_file',
action='store_true',
default=False,
help='Use the current environment configuration file only'
)
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[str]) -> int:
handlers = {
"list": self.list_values,
"edit": self.open_in_editor,
"get": self.get_name,
"set": self.set_name_value,
"unset": self.unset_name,
"debug": self.list_config_values,
}
# Determine action
if not args or args[0] not in handlers:
logger.error(
"Need an action (%s) to perform.",
", ".join(sorted(handlers)),
)
return ERROR
action = args[0]
# Determine which configuration files are to be loaded
# Depends on whether the command is modifying.
try:
load_only = self._determine_file(
options, need_value=(action in ["get", "set", "unset", "edit"])
)
except PipError as e:
logger.error(e.args[0])
return ERROR
# Load a new configuration
self.configuration = Configuration(
isolated=options.isolated_mode, load_only=load_only
)
self.configuration.load()
# Error handling happens here, not in the action-handlers.
try:
handlers[action](options, args[1:])
except PipError as e:
logger.error(e.args[0])
return ERROR
return SUCCESS
def _determine_file(self, options: Values, need_value: bool) -> Optional[Kind]:
file_options = [key for key, value in (
(kinds.USER, options.user_file),
(kinds.GLOBAL, options.global_file),
(kinds.SITE, options.site_file),
) if value]
if not file_options:
if not need_value:
return None
# Default to user, unless there's a site file.
elif any(
os.path.exists(site_config_file)
for site_config_file in get_configuration_files()[kinds.SITE]
):
return kinds.SITE
else:
return kinds.USER
elif len(file_options) == 1:
return file_options[0]
raise PipError(
"Need exactly one file to operate upon "
"(--user, --site, --global) to perform."
)
def list_values(self, options: Values, args: List[str]) -> None:
self._get_n_args(args, "list", n=0)
for key, value in sorted(self.configuration.items()):
write_output("%s=%r", key, value)
def get_name(self, options: Values, args: List[str]) -> None:
key = self._get_n_args(args, "get [name]", n=1)
value = self.configuration.get_value(key)
write_output("%s", value)
def set_name_value(self, options: Values, args: List[str]) -> None:
key, value = self._get_n_args(args, "set [name] [value]", n=2)
self.configuration.set_value(key, value)
self._save_configuration()
def unset_name(self, options: Values, args: List[str]) -> None:
key = self._get_n_args(args, "unset [name]", n=1)
self.configuration.unset_value(key)
self._save_configuration()
def list_config_values(self, options: Values, args: List[str]) -> None:
"""List config key-value pairs across different config files"""
self._get_n_args(args, "debug", n=0)
self.print_env_var_values()
# Iterate over config files and print if they exist, and the
# key-value pairs present in them if they do
for variant, files in sorted(self.configuration.iter_config_files()):
write_output("%s:", variant)
for fname in files:
with indent_log():
file_exists = os.path.exists(fname)
write_output("%s, exists: %r",
fname, file_exists)
if file_exists:
self.print_config_file_values(variant)
def print_config_file_values(self, variant: Kind) -> None:
"""Get key-value pairs from the file of a variant"""
for name, value in self.configuration.\
get_values_in_config(variant).items():
with indent_log():
write_output("%s: %s", name, value)
def print_env_var_values(self) -> None:
"""Get key-values pairs present as environment variables"""
write_output("%s:", 'env_var')
with indent_log():
for key, value in sorted(self.configuration.get_environ_vars()):
env_var = f'PIP_{key.upper()}'
write_output("%s=%r", env_var, value)
def open_in_editor(self, options: Values, args: List[str]) -> None:
editor = self._determine_editor(options)
fname = self.configuration.get_file_to_edit()
if fname is None:
raise PipError("Could not determine appropriate file.")
try:
subprocess.check_call([editor, fname])
except subprocess.CalledProcessError as e:
raise PipError(
"Editor Subprocess exited with exit code {}"
.format(e.returncode)
)
def _get_n_args(self, args: List[str], example: str, n: int) -> Any:
"""Helper to make sure the command got the right number of arguments
"""
if len(args) != n:
msg = (
'Got unexpected number of arguments, expected {}. '
'(example: "{} config {}")'
).format(n, get_prog(), example)
raise PipError(msg)
if n == 1:
return args[0]
else:
return args
def _save_configuration(self) -> None:
# We successfully ran a modifying command. Need to save the
# configuration.
try:
self.configuration.save()
except Exception:
logger.exception(
"Unable to save configuration. Please report this as a bug."
)
raise PipError("Internal Error.")
def _determine_editor(self, options: Values) -> str:
if options.editor is not None:
return options.editor
elif "VISUAL" in os.environ:
return os.environ["VISUAL"]
elif "EDITOR" in os.environ:
return os.environ["EDITOR"]
else:
raise PipError("Could not determine editor to use.")

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import locale
import logging
import os
import sys
from optparse import Values
from types import ModuleType
from typing import Any, Dict, List, Optional
import pip._vendor
from pip._vendor.certifi import where
from pip._vendor.packaging.version import parse as parse_version
from pip import __file__ as pip_location
from pip._internal.cli import cmdoptions
from pip._internal.cli.base_command import Command
from pip._internal.cli.cmdoptions import make_target_python
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.configuration import Configuration
from pip._internal.metadata import get_environment
from pip._internal.utils.logging import indent_log
from pip._internal.utils.misc import get_pip_version
logger = logging.getLogger(__name__)
def show_value(name: str, value: Any) -> None:
logger.info('%s: %s', name, value)
def show_sys_implementation() -> None:
logger.info('sys.implementation:')
implementation_name = sys.implementation.name
with indent_log():
show_value('name', implementation_name)
def create_vendor_txt_map() -> Dict[str, str]:
vendor_txt_path = os.path.join(
os.path.dirname(pip_location),
'_vendor',
'vendor.txt'
)
with open(vendor_txt_path) as f:
# Purge non version specifying lines.
# Also, remove any space prefix or suffixes (including comments).
lines = [line.strip().split(' ', 1)[0]
for line in f.readlines() if '==' in line]
# Transform into "module" -> version dict.
return dict(line.split('==', 1) for line in lines) # type: ignore
def get_module_from_module_name(module_name: str) -> ModuleType:
# Module name can be uppercase in vendor.txt for some reason...
module_name = module_name.lower()
# PATCH: setuptools is actually only pkg_resources.
if module_name == 'setuptools':
module_name = 'pkg_resources'
__import__(
f'pip._vendor.{module_name}',
globals(),
locals(),
level=0
)
return getattr(pip._vendor, module_name)
def get_vendor_version_from_module(module_name: str) -> Optional[str]:
module = get_module_from_module_name(module_name)
version = getattr(module, '__version__', None)
if not version:
# Try to find version in debundled module info.
env = get_environment([os.path.dirname(module.__file__)])
dist = env.get_distribution(module_name)
if dist:
version = str(dist.version)
return version
def show_actual_vendor_versions(vendor_txt_versions: Dict[str, str]) -> None:
"""Log the actual version and print extra info if there is
a conflict or if the actual version could not be imported.
"""
for module_name, expected_version in vendor_txt_versions.items():
extra_message = ''
actual_version = get_vendor_version_from_module(module_name)
if not actual_version:
extra_message = ' (Unable to locate actual module version, using'\
' vendor.txt specified version)'
actual_version = expected_version
elif parse_version(actual_version) != parse_version(expected_version):
extra_message = ' (CONFLICT: vendor.txt suggests version should'\
' be {})'.format(expected_version)
logger.info('%s==%s%s', module_name, actual_version, extra_message)
def show_vendor_versions() -> None:
logger.info('vendored library versions:')
vendor_txt_versions = create_vendor_txt_map()
with indent_log():
show_actual_vendor_versions(vendor_txt_versions)
def show_tags(options: Values) -> None:
tag_limit = 10
target_python = make_target_python(options)
tags = target_python.get_tags()
# Display the target options that were explicitly provided.
formatted_target = target_python.format_given()
suffix = ''
if formatted_target:
suffix = f' (target: {formatted_target})'
msg = 'Compatible tags: {}{}'.format(len(tags), suffix)
logger.info(msg)
if options.verbose < 1 and len(tags) > tag_limit:
tags_limited = True
tags = tags[:tag_limit]
else:
tags_limited = False
with indent_log():
for tag in tags:
logger.info(str(tag))
if tags_limited:
msg = (
'...\n'
'[First {tag_limit} tags shown. Pass --verbose to show all.]'
).format(tag_limit=tag_limit)
logger.info(msg)
def ca_bundle_info(config: Configuration) -> str:
levels = set()
for key, _ in config.items():
levels.add(key.split('.')[0])
if not levels:
return "Not specified"
levels_that_override_global = ['install', 'wheel', 'download']
global_overriding_level = [
level for level in levels if level in levels_that_override_global
]
if not global_overriding_level:
return 'global'
if 'global' in levels:
levels.remove('global')
return ", ".join(levels)
class DebugCommand(Command):
"""
Display debug information.
"""
usage = """
%prog <options>"""
ignore_require_venv = True
def add_options(self) -> None:
cmdoptions.add_target_python_options(self.cmd_opts)
self.parser.insert_option_group(0, self.cmd_opts)
self.parser.config.load()
def run(self, options: Values, args: List[str]) -> int:
logger.warning(
"This command is only meant for debugging. "
"Do not use this with automation for parsing and getting these "
"details, since the output and options of this command may "
"change without notice."
)
show_value('pip version', get_pip_version())
show_value('sys.version', sys.version)
show_value('sys.executable', sys.executable)
show_value('sys.getdefaultencoding', sys.getdefaultencoding())
show_value('sys.getfilesystemencoding', sys.getfilesystemencoding())
show_value(
'locale.getpreferredencoding', locale.getpreferredencoding(),
)
show_value('sys.platform', sys.platform)
show_sys_implementation()
show_value("'cert' config value", ca_bundle_info(self.parser.config))
show_value("REQUESTS_CA_BUNDLE", os.environ.get('REQUESTS_CA_BUNDLE'))
show_value("CURL_CA_BUNDLE", os.environ.get('CURL_CA_BUNDLE'))
show_value("pip._vendor.certifi.where()", where())
show_value("pip._vendor.DEBUNDLED", pip._vendor.DEBUNDLED)
show_vendor_versions()
show_tags(options)
return SUCCESS

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import logging
import os
from optparse import Values
from typing import List
from pip._internal.cli import cmdoptions
from pip._internal.cli.cmdoptions import make_target_python
from pip._internal.cli.req_command import RequirementCommand, with_cleanup
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.req.req_tracker import get_requirement_tracker
from pip._internal.utils.misc import ensure_dir, normalize_path, write_output
from pip._internal.utils.temp_dir import TempDirectory
logger = logging.getLogger(__name__)
class DownloadCommand(RequirementCommand):
"""
Download packages from:
- PyPI (and other indexes) using requirement specifiers.
- VCS project urls.
- Local project directories.
- Local or remote source archives.
pip also supports downloading from "requirements files", which provide
an easy way to specify a whole environment to be downloaded.
"""
usage = """
%prog [options] <requirement specifier> [package-index-options] ...
%prog [options] -r <requirements file> [package-index-options] ...
%prog [options] <vcs project url> ...
%prog [options] <local project path> ...
%prog [options] <archive url/path> ..."""
def add_options(self) -> None:
self.cmd_opts.add_option(cmdoptions.constraints())
self.cmd_opts.add_option(cmdoptions.requirements())
self.cmd_opts.add_option(cmdoptions.build_dir())
self.cmd_opts.add_option(cmdoptions.no_deps())
self.cmd_opts.add_option(cmdoptions.global_options())
self.cmd_opts.add_option(cmdoptions.no_binary())
self.cmd_opts.add_option(cmdoptions.only_binary())
self.cmd_opts.add_option(cmdoptions.prefer_binary())
self.cmd_opts.add_option(cmdoptions.src())
self.cmd_opts.add_option(cmdoptions.pre())
self.cmd_opts.add_option(cmdoptions.require_hashes())
self.cmd_opts.add_option(cmdoptions.progress_bar())
self.cmd_opts.add_option(cmdoptions.no_build_isolation())
self.cmd_opts.add_option(cmdoptions.use_pep517())
self.cmd_opts.add_option(cmdoptions.no_use_pep517())
self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
self.cmd_opts.add_option(
'-d', '--dest', '--destination-dir', '--destination-directory',
dest='download_dir',
metavar='dir',
default=os.curdir,
help=("Download packages into <dir>."),
)
cmdoptions.add_target_python_options(self.cmd_opts)
index_opts = cmdoptions.make_option_group(
cmdoptions.index_group,
self.parser,
)
self.parser.insert_option_group(0, index_opts)
self.parser.insert_option_group(0, self.cmd_opts)
@with_cleanup
def run(self, options: Values, args: List[str]) -> int:
options.ignore_installed = True
# editable doesn't really make sense for `pip download`, but the bowels
# of the RequirementSet code require that property.
options.editables = []
cmdoptions.check_dist_restriction(options)
options.download_dir = normalize_path(options.download_dir)
ensure_dir(options.download_dir)
session = self.get_default_session(options)
target_python = make_target_python(options)
finder = self._build_package_finder(
options=options,
session=session,
target_python=target_python,
ignore_requires_python=options.ignore_requires_python,
)
req_tracker = self.enter_context(get_requirement_tracker())
directory = TempDirectory(
delete=not options.no_clean,
kind="download",
globally_managed=True,
)
reqs = self.get_requirements(args, options, finder, session)
preparer = self.make_requirement_preparer(
temp_build_dir=directory,
options=options,
req_tracker=req_tracker,
session=session,
finder=finder,
download_dir=options.download_dir,
use_user_site=False,
)
resolver = self.make_resolver(
preparer=preparer,
finder=finder,
options=options,
ignore_requires_python=options.ignore_requires_python,
py_version_info=options.python_version,
)
self.trace_basic_info(finder)
requirement_set = resolver.resolve(
reqs, check_supported_wheels=True
)
downloaded: List[str] = []
for req in requirement_set.requirements.values():
if req.satisfied_by is None:
assert req.name is not None
preparer.save_linked_requirement(req)
downloaded.append(req.name)
if downloaded:
write_output('Successfully downloaded %s', ' '.join(downloaded))
return SUCCESS

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import sys
from optparse import Values
from typing import List
from pip._internal.cli import cmdoptions
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.operations.freeze import freeze
from pip._internal.utils.compat import stdlib_pkgs
DEV_PKGS = {'pip', 'setuptools', 'distribute', 'wheel'}
class FreezeCommand(Command):
"""
Output installed packages in requirements format.
packages are listed in a case-insensitive sorted order.
"""
usage = """
%prog [options]"""
log_streams = ("ext://sys.stderr", "ext://sys.stderr")
def add_options(self) -> None:
self.cmd_opts.add_option(
'-r', '--requirement',
dest='requirements',
action='append',
default=[],
metavar='file',
help="Use the order in the given requirements file and its "
"comments when generating output. This option can be "
"used multiple times.")
self.cmd_opts.add_option(
'-l', '--local',
dest='local',
action='store_true',
default=False,
help='If in a virtualenv that has global access, do not output '
'globally-installed packages.')
self.cmd_opts.add_option(
'--user',
dest='user',
action='store_true',
default=False,
help='Only output packages installed in user-site.')
self.cmd_opts.add_option(cmdoptions.list_path())
self.cmd_opts.add_option(
'--all',
dest='freeze_all',
action='store_true',
help='Do not skip these packages in the output:'
' {}'.format(', '.join(DEV_PKGS)))
self.cmd_opts.add_option(
'--exclude-editable',
dest='exclude_editable',
action='store_true',
help='Exclude editable package from output.')
self.cmd_opts.add_option(cmdoptions.list_exclude())
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[str]) -> int:
skip = set(stdlib_pkgs)
if not options.freeze_all:
skip.update(DEV_PKGS)
if options.excludes:
skip.update(options.excludes)
cmdoptions.check_list_path_option(options)
for line in freeze(
requirement=options.requirements,
local_only=options.local,
user_only=options.user,
paths=options.path,
isolated=options.isolated_mode,
skip=skip,
exclude_editable=options.exclude_editable,
):
sys.stdout.write(line + '\n')
return SUCCESS

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import hashlib
import logging
import sys
from optparse import Values
from typing import List
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.utils.hashes import FAVORITE_HASH, STRONG_HASHES
from pip._internal.utils.misc import read_chunks, write_output
logger = logging.getLogger(__name__)
class HashCommand(Command):
"""
Compute a hash of a local package archive.
These can be used with --hash in a requirements file to do repeatable
installs.
"""
usage = '%prog [options] <file> ...'
ignore_require_venv = True
def add_options(self) -> None:
self.cmd_opts.add_option(
'-a', '--algorithm',
dest='algorithm',
choices=STRONG_HASHES,
action='store',
default=FAVORITE_HASH,
help='The hash algorithm to use: one of {}'.format(
', '.join(STRONG_HASHES)))
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[str]) -> int:
if not args:
self.parser.print_usage(sys.stderr)
return ERROR
algorithm = options.algorithm
for path in args:
write_output('%s:\n--hash=%s:%s',
path, algorithm, _hash_of_file(path, algorithm))
return SUCCESS
def _hash_of_file(path: str, algorithm: str) -> str:
"""Return the hash digest of a file."""
with open(path, 'rb') as archive:
hash = hashlib.new(algorithm)
for chunk in read_chunks(archive):
hash.update(chunk)
return hash.hexdigest()

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from optparse import Values
from typing import List
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.exceptions import CommandError
class HelpCommand(Command):
"""Show help for commands"""
usage = """
%prog <command>"""
ignore_require_venv = True
def run(self, options: Values, args: List[str]) -> int:
from pip._internal.commands import (
commands_dict,
create_command,
get_similar_commands,
)
try:
# 'pip help' with no args is handled by pip.__init__.parseopt()
cmd_name = args[0] # the command we need help for
except IndexError:
return SUCCESS
if cmd_name not in commands_dict:
guess = get_similar_commands(cmd_name)
msg = [f'unknown command "{cmd_name}"']
if guess:
msg.append(f'maybe you meant "{guess}"')
raise CommandError(' - '.join(msg))
command = create_command(cmd_name)
command.parser.print_help()
return SUCCESS

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import logging
from optparse import Values
from typing import Any, Iterable, List, Optional, Union
from pip._vendor.packaging.version import LegacyVersion, Version
from pip._internal.cli import cmdoptions
from pip._internal.cli.req_command import IndexGroupCommand
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.commands.search import print_dist_installation_info
from pip._internal.exceptions import CommandError, DistributionNotFound, PipError
from pip._internal.index.collector import LinkCollector
from pip._internal.index.package_finder import PackageFinder
from pip._internal.models.selection_prefs import SelectionPreferences
from pip._internal.models.target_python import TargetPython
from pip._internal.network.session import PipSession
from pip._internal.utils.misc import write_output
logger = logging.getLogger(__name__)
class IndexCommand(IndexGroupCommand):
"""
Inspect information available from package indexes.
"""
usage = """
%prog versions <package>
"""
def add_options(self) -> None:
cmdoptions.add_target_python_options(self.cmd_opts)
self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
self.cmd_opts.add_option(cmdoptions.pre())
self.cmd_opts.add_option(cmdoptions.no_binary())
self.cmd_opts.add_option(cmdoptions.only_binary())
index_opts = cmdoptions.make_option_group(
cmdoptions.index_group,
self.parser,
)
self.parser.insert_option_group(0, index_opts)
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[Any]) -> int:
handlers = {
"versions": self.get_available_package_versions,
}
logger.warning(
"pip index is currently an experimental command. "
"It may be removed/changed in a future release "
"without prior warning."
)
# Determine action
if not args or args[0] not in handlers:
logger.error(
"Need an action (%s) to perform.",
", ".join(sorted(handlers)),
)
return ERROR
action = args[0]
# Error handling happens here, not in the action-handlers.
try:
handlers[action](options, args[1:])
except PipError as e:
logger.error(e.args[0])
return ERROR
return SUCCESS
def _build_package_finder(
self,
options: Values,
session: PipSession,
target_python: Optional[TargetPython] = None,
ignore_requires_python: Optional[bool] = None,
) -> PackageFinder:
"""
Create a package finder appropriate to the index command.
"""
link_collector = LinkCollector.create(session, options=options)
# Pass allow_yanked=False to ignore yanked versions.
selection_prefs = SelectionPreferences(
allow_yanked=False,
allow_all_prereleases=options.pre,
ignore_requires_python=ignore_requires_python,
)
return PackageFinder.create(
link_collector=link_collector,
selection_prefs=selection_prefs,
target_python=target_python,
)
def get_available_package_versions(self, options: Values, args: List[Any]) -> None:
if len(args) != 1:
raise CommandError('You need to specify exactly one argument')
target_python = cmdoptions.make_target_python(options)
query = args[0]
with self._build_session(options) as session:
finder = self._build_package_finder(
options=options,
session=session,
target_python=target_python,
ignore_requires_python=options.ignore_requires_python,
)
versions: Iterable[Union[LegacyVersion, Version]] = (
candidate.version
for candidate in finder.find_all_candidates(query)
)
if not options.pre:
# Remove prereleases
versions = (version for version in versions
if not version.is_prerelease)
versions = set(versions)
if not versions:
raise DistributionNotFound(
'No matching distribution found for {}'.format(query))
formatted_versions = [str(ver) for ver in sorted(
versions, reverse=True)]
latest = formatted_versions[0]
write_output('{} ({})'.format(query, latest))
write_output('Available versions: {}'.format(
', '.join(formatted_versions)))
print_dist_installation_info(query, latest)

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import errno
import operator
import os
import shutil
import site
from optparse import SUPPRESS_HELP, Values
from typing import Iterable, List, Optional
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.cache import WheelCache
from pip._internal.cli import cmdoptions
from pip._internal.cli.cmdoptions import make_target_python
from pip._internal.cli.req_command import (
RequirementCommand,
warn_if_run_as_root,
with_cleanup,
)
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.exceptions import CommandError, InstallationError
from pip._internal.locations import get_scheme
from pip._internal.metadata import get_environment
from pip._internal.models.format_control import FormatControl
from pip._internal.operations.check import ConflictDetails, check_install_conflicts
from pip._internal.req import install_given_reqs
from pip._internal.req.req_install import InstallRequirement
from pip._internal.req.req_tracker import get_requirement_tracker
from pip._internal.utils.compat import WINDOWS
from pip._internal.utils.distutils_args import parse_distutils_args
from pip._internal.utils.filesystem import test_writable_dir
from pip._internal.utils.logging import getLogger
from pip._internal.utils.misc import (
ensure_dir,
get_pip_version,
protect_pip_from_modification_on_windows,
write_output,
)
from pip._internal.utils.temp_dir import TempDirectory
from pip._internal.utils.virtualenv import (
running_under_virtualenv,
virtualenv_no_global,
)
from pip._internal.wheel_builder import (
BinaryAllowedPredicate,
build,
should_build_for_install_command,
)
logger = getLogger(__name__)
def get_check_binary_allowed(format_control: FormatControl) -> BinaryAllowedPredicate:
def check_binary_allowed(req: InstallRequirement) -> bool:
canonical_name = canonicalize_name(req.name or "")
allowed_formats = format_control.get_allowed_formats(canonical_name)
return "binary" in allowed_formats
return check_binary_allowed
class InstallCommand(RequirementCommand):
"""
Install packages from:
- PyPI (and other indexes) using requirement specifiers.
- VCS project urls.
- Local project directories.
- Local or remote source archives.
pip also supports installing from "requirements files", which provide
an easy way to specify a whole environment to be installed.
"""
usage = """
%prog [options] <requirement specifier> [package-index-options] ...
%prog [options] -r <requirements file> [package-index-options] ...
%prog [options] [-e] <vcs project url> ...
%prog [options] [-e] <local project path> ...
%prog [options] <archive url/path> ..."""
def add_options(self) -> None:
self.cmd_opts.add_option(cmdoptions.requirements())
self.cmd_opts.add_option(cmdoptions.constraints())
self.cmd_opts.add_option(cmdoptions.no_deps())
self.cmd_opts.add_option(cmdoptions.pre())
self.cmd_opts.add_option(cmdoptions.editable())
self.cmd_opts.add_option(
'-t', '--target',
dest='target_dir',
metavar='dir',
default=None,
help='Install packages into <dir>. '
'By default this will not replace existing files/folders in '
'<dir>. Use --upgrade to replace existing packages in <dir> '
'with new versions.'
)
cmdoptions.add_target_python_options(self.cmd_opts)
self.cmd_opts.add_option(
'--user',
dest='use_user_site',
action='store_true',
help="Install to the Python user install directory for your "
"platform. Typically ~/.local/, or %APPDATA%\\Python on "
"Windows. (See the Python documentation for site.USER_BASE "
"for full details.)")
self.cmd_opts.add_option(
'--no-user',
dest='use_user_site',
action='store_false',
help=SUPPRESS_HELP)
self.cmd_opts.add_option(
'--root',
dest='root_path',
metavar='dir',
default=None,
help="Install everything relative to this alternate root "
"directory.")
self.cmd_opts.add_option(
'--prefix',
dest='prefix_path',
metavar='dir',
default=None,
help="Installation prefix where lib, bin and other top-level "
"folders are placed")
self.cmd_opts.add_option(cmdoptions.build_dir())
self.cmd_opts.add_option(cmdoptions.src())
self.cmd_opts.add_option(
'-U', '--upgrade',
dest='upgrade',
action='store_true',
help='Upgrade all specified packages to the newest available '
'version. The handling of dependencies depends on the '
'upgrade-strategy used.'
)
self.cmd_opts.add_option(
'--upgrade-strategy',
dest='upgrade_strategy',
default='only-if-needed',
choices=['only-if-needed', 'eager'],
help='Determines how dependency upgrading should be handled '
'[default: %default]. '
'"eager" - dependencies are upgraded regardless of '
'whether the currently installed version satisfies the '
'requirements of the upgraded package(s). '
'"only-if-needed" - are upgraded only when they do not '
'satisfy the requirements of the upgraded package(s).'
)
self.cmd_opts.add_option(
'--force-reinstall',
dest='force_reinstall',
action='store_true',
help='Reinstall all packages even if they are already '
'up-to-date.')
self.cmd_opts.add_option(
'-I', '--ignore-installed',
dest='ignore_installed',
action='store_true',
help='Ignore the installed packages, overwriting them. '
'This can break your system if the existing package '
'is of a different version or was installed '
'with a different package manager!'
)
self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
self.cmd_opts.add_option(cmdoptions.no_build_isolation())
self.cmd_opts.add_option(cmdoptions.use_pep517())
self.cmd_opts.add_option(cmdoptions.no_use_pep517())
self.cmd_opts.add_option(cmdoptions.install_options())
self.cmd_opts.add_option(cmdoptions.global_options())
self.cmd_opts.add_option(
"--compile",
action="store_true",
dest="compile",
default=True,
help="Compile Python source files to bytecode",
)
self.cmd_opts.add_option(
"--no-compile",
action="store_false",
dest="compile",
help="Do not compile Python source files to bytecode",
)
self.cmd_opts.add_option(
"--no-warn-script-location",
action="store_false",
dest="warn_script_location",
default=True,
help="Do not warn when installing scripts outside PATH",
)
self.cmd_opts.add_option(
"--no-warn-conflicts",
action="store_false",
dest="warn_about_conflicts",
default=True,
help="Do not warn about broken dependencies",
)
self.cmd_opts.add_option(cmdoptions.no_binary())
self.cmd_opts.add_option(cmdoptions.only_binary())
self.cmd_opts.add_option(cmdoptions.prefer_binary())
self.cmd_opts.add_option(cmdoptions.require_hashes())
self.cmd_opts.add_option(cmdoptions.progress_bar())
index_opts = cmdoptions.make_option_group(
cmdoptions.index_group,
self.parser,
)
self.parser.insert_option_group(0, index_opts)
self.parser.insert_option_group(0, self.cmd_opts)
@with_cleanup
def run(self, options: Values, args: List[str]) -> int:
if options.use_user_site and options.target_dir is not None:
raise CommandError("Can not combine '--user' and '--target'")
cmdoptions.check_install_build_global(options)
upgrade_strategy = "to-satisfy-only"
if options.upgrade:
upgrade_strategy = options.upgrade_strategy
cmdoptions.check_dist_restriction(options, check_target=True)
install_options = options.install_options or []
logger.verbose("Using %s", get_pip_version())
options.use_user_site = decide_user_install(
options.use_user_site,
prefix_path=options.prefix_path,
target_dir=options.target_dir,
root_path=options.root_path,
isolated_mode=options.isolated_mode,
)
target_temp_dir: Optional[TempDirectory] = None
target_temp_dir_path: Optional[str] = None
if options.target_dir:
options.ignore_installed = True
options.target_dir = os.path.abspath(options.target_dir)
if (os.path.exists(options.target_dir) and not
os.path.isdir(options.target_dir)):
raise CommandError(
"Target path exists but is not a directory, will not "
"continue."
)
# Create a target directory for using with the target option
target_temp_dir = TempDirectory(kind="target")
target_temp_dir_path = target_temp_dir.path
self.enter_context(target_temp_dir)
global_options = options.global_options or []
session = self.get_default_session(options)
target_python = make_target_python(options)
finder = self._build_package_finder(
options=options,
session=session,
target_python=target_python,
ignore_requires_python=options.ignore_requires_python,
)
wheel_cache = WheelCache(options.cache_dir, options.format_control)
req_tracker = self.enter_context(get_requirement_tracker())
directory = TempDirectory(
delete=not options.no_clean,
kind="install",
globally_managed=True,
)
try:
reqs = self.get_requirements(args, options, finder, session)
reject_location_related_install_options(
reqs, options.install_options
)
preparer = self.make_requirement_preparer(
temp_build_dir=directory,
options=options,
req_tracker=req_tracker,
session=session,
finder=finder,
use_user_site=options.use_user_site,
)
resolver = self.make_resolver(
preparer=preparer,
finder=finder,
options=options,
wheel_cache=wheel_cache,
use_user_site=options.use_user_site,
ignore_installed=options.ignore_installed,
ignore_requires_python=options.ignore_requires_python,
force_reinstall=options.force_reinstall,
upgrade_strategy=upgrade_strategy,
use_pep517=options.use_pep517,
)
self.trace_basic_info(finder)
requirement_set = resolver.resolve(
reqs, check_supported_wheels=not options.target_dir
)
try:
pip_req = requirement_set.get_requirement("pip")
except KeyError:
modifying_pip = False
else:
# If we're not replacing an already installed pip,
# we're not modifying it.
modifying_pip = pip_req.satisfied_by is None
protect_pip_from_modification_on_windows(
modifying_pip=modifying_pip
)
check_binary_allowed = get_check_binary_allowed(
finder.format_control
)
reqs_to_build = [
r for r in requirement_set.requirements.values()
if should_build_for_install_command(
r, check_binary_allowed
)
]
_, build_failures = build(
reqs_to_build,
wheel_cache=wheel_cache,
verify=True,
build_options=[],
global_options=[],
)
# If we're using PEP 517, we cannot do a direct install
# so we fail here.
pep517_build_failure_names: List[str] = [
r.name # type: ignore
for r in build_failures if r.use_pep517
]
if pep517_build_failure_names:
raise InstallationError(
"Could not build wheels for {} which use"
" PEP 517 and cannot be installed directly".format(
", ".join(pep517_build_failure_names)
)
)
# For now, we just warn about failures building legacy
# requirements, as we'll fall through to a direct
# install for those.
for r in build_failures:
if not r.use_pep517:
r.legacy_install_reason = 8368
to_install = resolver.get_installation_order(
requirement_set
)
# Check for conflicts in the package set we're installing.
conflicts: Optional[ConflictDetails] = None
should_warn_about_conflicts = (
not options.ignore_dependencies and
options.warn_about_conflicts
)
if should_warn_about_conflicts:
conflicts = self._determine_conflicts(to_install)
# Don't warn about script install locations if
# --target or --prefix has been specified
warn_script_location = options.warn_script_location
if options.target_dir or options.prefix_path:
warn_script_location = False
installed = install_given_reqs(
to_install,
install_options,
global_options,
root=options.root_path,
home=target_temp_dir_path,
prefix=options.prefix_path,
warn_script_location=warn_script_location,
use_user_site=options.use_user_site,
pycompile=options.compile,
)
lib_locations = get_lib_location_guesses(
user=options.use_user_site,
home=target_temp_dir_path,
root=options.root_path,
prefix=options.prefix_path,
isolated=options.isolated_mode,
)
env = get_environment(lib_locations)
installed.sort(key=operator.attrgetter('name'))
items = []
for result in installed:
item = result.name
try:
installed_dist = env.get_distribution(item)
if installed_dist is not None:
item = f"{item}-{installed_dist.version}"
except Exception:
pass
items.append(item)
if conflicts is not None:
self._warn_about_conflicts(
conflicts,
resolver_variant=self.determine_resolver_variant(options),
)
installed_desc = ' '.join(items)
if installed_desc:
write_output(
'Successfully installed %s', installed_desc,
)
except OSError as error:
show_traceback = (self.verbosity >= 1)
message = create_os_error_message(
error, show_traceback, options.use_user_site,
)
logger.error(message, exc_info=show_traceback) # noqa
return ERROR
if options.target_dir:
assert target_temp_dir
self._handle_target_dir(
options.target_dir, target_temp_dir, options.upgrade
)
warn_if_run_as_root()
return SUCCESS
def _handle_target_dir(
self, target_dir: str, target_temp_dir: TempDirectory, upgrade: bool
) -> None:
ensure_dir(target_dir)
# Checking both purelib and platlib directories for installed
# packages to be moved to target directory
lib_dir_list = []
# Checking both purelib and platlib directories for installed
# packages to be moved to target directory
scheme = get_scheme('', home=target_temp_dir.path)
purelib_dir = scheme.purelib
platlib_dir = scheme.platlib
data_dir = scheme.data
if os.path.exists(purelib_dir):
lib_dir_list.append(purelib_dir)
if os.path.exists(platlib_dir) and platlib_dir != purelib_dir:
lib_dir_list.append(platlib_dir)
if os.path.exists(data_dir):
lib_dir_list.append(data_dir)
for lib_dir in lib_dir_list:
for item in os.listdir(lib_dir):
if lib_dir == data_dir:
ddir = os.path.join(data_dir, item)
if any(s.startswith(ddir) for s in lib_dir_list[:-1]):
continue
target_item_dir = os.path.join(target_dir, item)
if os.path.exists(target_item_dir):
if not upgrade:
logger.warning(
'Target directory %s already exists. Specify '
'--upgrade to force replacement.',
target_item_dir
)
continue
if os.path.islink(target_item_dir):
logger.warning(
'Target directory %s already exists and is '
'a link. pip will not automatically replace '
'links, please remove if replacement is '
'desired.',
target_item_dir
)
continue
if os.path.isdir(target_item_dir):
shutil.rmtree(target_item_dir)
else:
os.remove(target_item_dir)
shutil.move(
os.path.join(lib_dir, item),
target_item_dir
)
def _determine_conflicts(
self, to_install: List[InstallRequirement]
) -> Optional[ConflictDetails]:
try:
return check_install_conflicts(to_install)
except Exception:
logger.exception(
"Error while checking for conflicts. Please file an issue on "
"pip's issue tracker: https://github.com/pypa/pip/issues/new"
)
return None
def _warn_about_conflicts(
self, conflict_details: ConflictDetails, resolver_variant: str
) -> None:
package_set, (missing, conflicting) = conflict_details
if not missing and not conflicting:
return
parts: List[str] = []
if resolver_variant == "legacy":
parts.append(
"pip's legacy dependency resolver does not consider dependency "
"conflicts when selecting packages. This behaviour is the "
"source of the following dependency conflicts."
)
else:
assert resolver_variant == "2020-resolver"
parts.append(
"pip's dependency resolver does not currently take into account "
"all the packages that are installed. This behaviour is the "
"source of the following dependency conflicts."
)
# NOTE: There is some duplication here, with commands/check.py
for project_name in missing:
version = package_set[project_name][0]
for dependency in missing[project_name]:
message = (
"{name} {version} requires {requirement}, "
"which is not installed."
).format(
name=project_name,
version=version,
requirement=dependency[1],
)
parts.append(message)
for project_name in conflicting:
version = package_set[project_name][0]
for dep_name, dep_version, req in conflicting[project_name]:
message = (
"{name} {version} requires {requirement}, but {you} have "
"{dep_name} {dep_version} which is incompatible."
).format(
name=project_name,
version=version,
requirement=req,
dep_name=dep_name,
dep_version=dep_version,
you=("you" if resolver_variant == "2020-resolver" else "you'll")
)
parts.append(message)
logger.critical("\n".join(parts))
def get_lib_location_guesses(
user: bool = False,
home: Optional[str] = None,
root: Optional[str] = None,
isolated: bool = False,
prefix: Optional[str] = None
) -> List[str]:
scheme = get_scheme(
'',
user=user,
home=home,
root=root,
isolated=isolated,
prefix=prefix,
)
return [scheme.purelib, scheme.platlib]
def site_packages_writable(root: Optional[str], isolated: bool) -> bool:
return all(
test_writable_dir(d) for d in set(
get_lib_location_guesses(root=root, isolated=isolated))
)
def decide_user_install(
use_user_site: Optional[bool],
prefix_path: Optional[str] = None,
target_dir: Optional[str] = None,
root_path: Optional[str] = None,
isolated_mode: bool = False,
) -> bool:
"""Determine whether to do a user install based on the input options.
If use_user_site is False, no additional checks are done.
If use_user_site is True, it is checked for compatibility with other
options.
If use_user_site is None, the default behaviour depends on the environment,
which is provided by the other arguments.
"""
# In some cases (config from tox), use_user_site can be set to an integer
# rather than a bool, which 'use_user_site is False' wouldn't catch.
if (use_user_site is not None) and (not use_user_site):
logger.debug("Non-user install by explicit request")
return False
if use_user_site:
if prefix_path:
raise CommandError(
"Can not combine '--user' and '--prefix' as they imply "
"different installation locations"
)
if virtualenv_no_global():
raise InstallationError(
"Can not perform a '--user' install. User site-packages "
"are not visible in this virtualenv."
)
logger.debug("User install by explicit request")
return True
# If we are here, user installs have not been explicitly requested/avoided
assert use_user_site is None
# user install incompatible with --prefix/--target
if prefix_path or target_dir:
logger.debug("Non-user install due to --prefix or --target option")
return False
# If user installs are not enabled, choose a non-user install
if not site.ENABLE_USER_SITE:
logger.debug("Non-user install because user site-packages disabled")
return False
# If we have permission for a non-user install, do that,
# otherwise do a user install.
if site_packages_writable(root=root_path, isolated=isolated_mode):
logger.debug("Non-user install because site-packages writeable")
return False
logger.info("Defaulting to user installation because normal site-packages "
"is not writeable")
return True
def reject_location_related_install_options(
requirements: List[InstallRequirement], options: Optional[List[str]]
) -> None:
"""If any location-changing --install-option arguments were passed for
requirements or on the command-line, then show a deprecation warning.
"""
def format_options(option_names: Iterable[str]) -> List[str]:
return ["--{}".format(name.replace("_", "-")) for name in option_names]
offenders = []
for requirement in requirements:
install_options = requirement.install_options
location_options = parse_distutils_args(install_options)
if location_options:
offenders.append(
"{!r} from {}".format(
format_options(location_options.keys()), requirement
)
)
if options:
location_options = parse_distutils_args(options)
if location_options:
offenders.append(
"{!r} from command line".format(
format_options(location_options.keys())
)
)
if not offenders:
return
raise CommandError(
"Location-changing options found in --install-option: {}."
" This is unsupported, use pip-level options like --user,"
" --prefix, --root, and --target instead.".format(
"; ".join(offenders)
)
)
def create_os_error_message(
error: OSError, show_traceback: bool, using_user_site: bool
) -> str:
"""Format an error message for an OSError
It may occur anytime during the execution of the install command.
"""
parts = []
# Mention the error if we are not going to show a traceback
parts.append("Could not install packages due to an OSError")
if not show_traceback:
parts.append(": ")
parts.append(str(error))
else:
parts.append(".")
# Spilt the error indication from a helper message (if any)
parts[-1] += "\n"
# Suggest useful actions to the user:
# (1) using user site-packages or (2) verifying the permissions
if error.errno == errno.EACCES:
user_option_part = "Consider using the `--user` option"
permissions_part = "Check the permissions"
if not running_under_virtualenv() and not using_user_site:
parts.extend([
user_option_part, " or ",
permissions_part.lower(),
])
else:
parts.append(permissions_part)
parts.append(".\n")
# Suggest the user to enable Long Paths if path length is
# more than 260
if (WINDOWS and error.errno == errno.ENOENT and error.filename and
len(error.filename) > 260):
parts.append(
"HINT: This error might have occurred since "
"this system does not have Windows Long Path "
"support enabled. You can find information on "
"how to enable this at "
"https://pip.pypa.io/warnings/enable-long-paths\n"
)
return "".join(parts).strip() + "\n"

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venv/Lib/site-packages/pip/_internal/commands/list.py Normal file
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@ -0,0 +1,337 @@
import json
import logging
from optparse import Values
from typing import TYPE_CHECKING, Iterator, List, Optional, Sequence, Tuple, cast
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.cli import cmdoptions
from pip._internal.cli.req_command import IndexGroupCommand
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.exceptions import CommandError
from pip._internal.index.collector import LinkCollector
from pip._internal.index.package_finder import PackageFinder
from pip._internal.metadata import BaseDistribution, get_environment
from pip._internal.models.selection_prefs import SelectionPreferences
from pip._internal.network.session import PipSession
from pip._internal.utils.misc import stdlib_pkgs, tabulate, write_output
from pip._internal.utils.parallel import map_multithread
if TYPE_CHECKING:
from pip._internal.metadata.base import DistributionVersion
class _DistWithLatestInfo(BaseDistribution):
"""Give the distribution object a couple of extra fields.
These will be populated during ``get_outdated()``. This is dirty but
makes the rest of the code much cleaner.
"""
latest_version: DistributionVersion
latest_filetype: str
_ProcessedDists = Sequence[_DistWithLatestInfo]
logger = logging.getLogger(__name__)
class ListCommand(IndexGroupCommand):
"""
List installed packages, including editables.
Packages are listed in a case-insensitive sorted order.
"""
ignore_require_venv = True
usage = """
%prog [options]"""
def add_options(self) -> None:
self.cmd_opts.add_option(
'-o', '--outdated',
action='store_true',
default=False,
help='List outdated packages')
self.cmd_opts.add_option(
'-u', '--uptodate',
action='store_true',
default=False,
help='List uptodate packages')
self.cmd_opts.add_option(
'-e', '--editable',
action='store_true',
default=False,
help='List editable projects.')
self.cmd_opts.add_option(
'-l', '--local',
action='store_true',
default=False,
help=('If in a virtualenv that has global access, do not list '
'globally-installed packages.'),
)
self.cmd_opts.add_option(
'--user',
dest='user',
action='store_true',
default=False,
help='Only output packages installed in user-site.')
self.cmd_opts.add_option(cmdoptions.list_path())
self.cmd_opts.add_option(
'--pre',
action='store_true',
default=False,
help=("Include pre-release and development versions. By default, "
"pip only finds stable versions."),
)
self.cmd_opts.add_option(
'--format',
action='store',
dest='list_format',
default="columns",
choices=('columns', 'freeze', 'json'),
help="Select the output format among: columns (default), freeze, "
"or json",
)
self.cmd_opts.add_option(
'--not-required',
action='store_true',
dest='not_required',
help="List packages that are not dependencies of "
"installed packages.",
)
self.cmd_opts.add_option(
'--exclude-editable',
action='store_false',
dest='include_editable',
help='Exclude editable package from output.',
)
self.cmd_opts.add_option(
'--include-editable',
action='store_true',
dest='include_editable',
help='Include editable package from output.',
default=True,
)
self.cmd_opts.add_option(cmdoptions.list_exclude())
index_opts = cmdoptions.make_option_group(
cmdoptions.index_group, self.parser
)
self.parser.insert_option_group(0, index_opts)
self.parser.insert_option_group(0, self.cmd_opts)
def _build_package_finder(
self, options: Values, session: PipSession
) -> PackageFinder:
"""
Create a package finder appropriate to this list command.
"""
link_collector = LinkCollector.create(session, options=options)
# Pass allow_yanked=False to ignore yanked versions.
selection_prefs = SelectionPreferences(
allow_yanked=False,
allow_all_prereleases=options.pre,
)
return PackageFinder.create(
link_collector=link_collector,
selection_prefs=selection_prefs,
)
def run(self, options: Values, args: List[str]) -> int:
if options.outdated and options.uptodate:
raise CommandError(
"Options --outdated and --uptodate cannot be combined.")
cmdoptions.check_list_path_option(options)
skip = set(stdlib_pkgs)
if options.excludes:
skip.update(canonicalize_name(n) for n in options.excludes)
packages: "_ProcessedDists" = [
cast("_DistWithLatestInfo", d)
for d in get_environment(options.path).iter_installed_distributions(
local_only=options.local,
user_only=options.user,
editables_only=options.editable,
include_editables=options.include_editable,
skip=skip,
)
]
# get_not_required must be called firstly in order to find and
# filter out all dependencies correctly. Otherwise a package
# can't be identified as requirement because some parent packages
# could be filtered out before.
if options.not_required:
packages = self.get_not_required(packages, options)
if options.outdated:
packages = self.get_outdated(packages, options)
elif options.uptodate:
packages = self.get_uptodate(packages, options)
self.output_package_listing(packages, options)
return SUCCESS
def get_outdated(
self, packages: "_ProcessedDists", options: Values
) -> "_ProcessedDists":
return [
dist for dist in self.iter_packages_latest_infos(packages, options)
if dist.latest_version > dist.version
]
def get_uptodate(
self, packages: "_ProcessedDists", options: Values
) -> "_ProcessedDists":
return [
dist for dist in self.iter_packages_latest_infos(packages, options)
if dist.latest_version == dist.version
]
def get_not_required(
self, packages: "_ProcessedDists", options: Values
) -> "_ProcessedDists":
dep_keys = {
canonicalize_name(dep.name)
for dist in packages
for dep in (dist.iter_dependencies() or ())
}
# Create a set to remove duplicate packages, and cast it to a list
# to keep the return type consistent with get_outdated and
# get_uptodate
return list({pkg for pkg in packages if pkg.canonical_name not in dep_keys})
def iter_packages_latest_infos(
self, packages: "_ProcessedDists", options: Values
) -> Iterator["_DistWithLatestInfo"]:
with self._build_session(options) as session:
finder = self._build_package_finder(options, session)
def latest_info(
dist: "_DistWithLatestInfo"
) -> Optional["_DistWithLatestInfo"]:
all_candidates = finder.find_all_candidates(dist.canonical_name)
if not options.pre:
# Remove prereleases
all_candidates = [candidate for candidate in all_candidates
if not candidate.version.is_prerelease]
evaluator = finder.make_candidate_evaluator(
project_name=dist.canonical_name,
)
best_candidate = evaluator.sort_best_candidate(all_candidates)
if best_candidate is None:
return None
remote_version = best_candidate.version
if best_candidate.link.is_wheel:
typ = 'wheel'
else:
typ = 'sdist'
dist.latest_version = remote_version
dist.latest_filetype = typ
return dist
for dist in map_multithread(latest_info, packages):
if dist is not None:
yield dist
def output_package_listing(
self, packages: "_ProcessedDists", options: Values
) -> None:
packages = sorted(
packages,
key=lambda dist: dist.canonical_name,
)
if options.list_format == 'columns' and packages:
data, header = format_for_columns(packages, options)
self.output_package_listing_columns(data, header)
elif options.list_format == 'freeze':
for dist in packages:
if options.verbose >= 1:
write_output("%s==%s (%s)", dist.raw_name,
dist.version, dist.location)
else:
write_output("%s==%s", dist.raw_name, dist.version)
elif options.list_format == 'json':
write_output(format_for_json(packages, options))
def output_package_listing_columns(
self, data: List[List[str]], header: List[str]
) -> None:
# insert the header first: we need to know the size of column names
if len(data) > 0:
data.insert(0, header)
pkg_strings, sizes = tabulate(data)
# Create and add a separator.
if len(data) > 0:
pkg_strings.insert(1, " ".join(map(lambda x: '-' * x, sizes)))
for val in pkg_strings:
write_output(val)
def format_for_columns(
pkgs: "_ProcessedDists", options: Values
) -> Tuple[List[List[str]], List[str]]:
"""
Convert the package data into something usable
by output_package_listing_columns.
"""
running_outdated = options.outdated
# Adjust the header for the `pip list --outdated` case.
if running_outdated:
header = ["Package", "Version", "Latest", "Type"]
else:
header = ["Package", "Version"]
data = []
if options.verbose >= 1 or any(x.editable for x in pkgs):
header.append("Location")
if options.verbose >= 1:
header.append("Installer")
for proj in pkgs:
# if we're working on the 'outdated' list, separate out the
# latest_version and type
row = [proj.raw_name, str(proj.version)]
if running_outdated:
row.append(str(proj.latest_version))
row.append(proj.latest_filetype)
if options.verbose >= 1 or proj.editable:
row.append(proj.location or "")
if options.verbose >= 1:
row.append(proj.installer)
data.append(row)
return data, header
def format_for_json(packages: "_ProcessedDists", options: Values) -> str:
data = []
for dist in packages:
info = {
'name': dist.raw_name,
'version': str(dist.version),
}
if options.verbose >= 1:
info['location'] = dist.location or ""
info['installer'] = dist.installer
if options.outdated:
info['latest_version'] = str(dist.latest_version)
info['latest_filetype'] = dist.latest_filetype
data.append(info)
return json.dumps(data)

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import logging
import shutil
import sys
import textwrap
import xmlrpc.client
from collections import OrderedDict
from optparse import Values
from typing import TYPE_CHECKING, Dict, List, Optional
from pip._vendor.packaging.version import parse as parse_version
from pip._internal.cli.base_command import Command
from pip._internal.cli.req_command import SessionCommandMixin
from pip._internal.cli.status_codes import NO_MATCHES_FOUND, SUCCESS
from pip._internal.exceptions import CommandError
from pip._internal.metadata import get_default_environment
from pip._internal.models.index import PyPI
from pip._internal.network.xmlrpc import PipXmlrpcTransport
from pip._internal.utils.logging import indent_log
from pip._internal.utils.misc import write_output
if TYPE_CHECKING:
from typing import TypedDict
class TransformedHit(TypedDict):
name: str
summary: str
versions: List[str]
logger = logging.getLogger(__name__)
class SearchCommand(Command, SessionCommandMixin):
"""Search for PyPI packages whose name or summary contains <query>."""
usage = """
%prog [options] <query>"""
ignore_require_venv = True
def add_options(self) -> None:
self.cmd_opts.add_option(
'-i', '--index',
dest='index',
metavar='URL',
default=PyPI.pypi_url,
help='Base URL of Python Package Index (default %default)')
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[str]) -> int:
if not args:
raise CommandError('Missing required argument (search query).')
query = args
pypi_hits = self.search(query, options)
hits = transform_hits(pypi_hits)
terminal_width = None
if sys.stdout.isatty():
terminal_width = shutil.get_terminal_size()[0]
print_results(hits, terminal_width=terminal_width)
if pypi_hits:
return SUCCESS
return NO_MATCHES_FOUND
def search(self, query: List[str], options: Values) -> List[Dict[str, str]]:
index_url = options.index
session = self.get_default_session(options)
transport = PipXmlrpcTransport(index_url, session)
pypi = xmlrpc.client.ServerProxy(index_url, transport)
try:
hits = pypi.search({'name': query, 'summary': query}, 'or')
except xmlrpc.client.Fault as fault:
message = "XMLRPC request failed [code: {code}]\n{string}".format(
code=fault.faultCode,
string=fault.faultString,
)
raise CommandError(message)
assert isinstance(hits, list)
return hits
def transform_hits(hits: List[Dict[str, str]]) -> List["TransformedHit"]:
"""
The list from pypi is really a list of versions. We want a list of
packages with the list of versions stored inline. This converts the
list from pypi into one we can use.
"""
packages: Dict[str, "TransformedHit"] = OrderedDict()
for hit in hits:
name = hit['name']
summary = hit['summary']
version = hit['version']
if name not in packages.keys():
packages[name] = {
'name': name,
'summary': summary,
'versions': [version],
}
else:
packages[name]['versions'].append(version)
# if this is the highest version, replace summary and score
if version == highest_version(packages[name]['versions']):
packages[name]['summary'] = summary
return list(packages.values())
def print_dist_installation_info(name: str, latest: str) -> None:
env = get_default_environment()
dist = env.get_distribution(name)
if dist is not None:
with indent_log():
if dist.version == latest:
write_output('INSTALLED: %s (latest)', dist.version)
else:
write_output('INSTALLED: %s', dist.version)
if parse_version(latest).pre:
write_output('LATEST: %s (pre-release; install'
' with "pip install --pre")', latest)
else:
write_output('LATEST: %s', latest)
def print_results(
hits: List["TransformedHit"],
name_column_width: Optional[int] = None,
terminal_width: Optional[int] = None,
) -> None:
if not hits:
return
if name_column_width is None:
name_column_width = max([
len(hit['name']) + len(highest_version(hit.get('versions', ['-'])))
for hit in hits
]) + 4
for hit in hits:
name = hit['name']
summary = hit['summary'] or ''
latest = highest_version(hit.get('versions', ['-']))
if terminal_width is not None:
target_width = terminal_width - name_column_width - 5
if target_width > 10:
# wrap and indent summary to fit terminal
summary_lines = textwrap.wrap(summary, target_width)
summary = ('\n' + ' ' * (name_column_width + 3)).join(
summary_lines)
name_latest = f'{name} ({latest})'
line = f'{name_latest:{name_column_width}} - {summary}'
try:
write_output(line)
print_dist_installation_info(name, latest)
except UnicodeEncodeError:
pass
def highest_version(versions: List[str]) -> str:
return max(versions, key=parse_version)

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import csv
import logging
import pathlib
from optparse import Values
from typing import Iterator, List, NamedTuple, Optional, Tuple
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.metadata import BaseDistribution, get_default_environment
from pip._internal.utils.misc import write_output
logger = logging.getLogger(__name__)
class ShowCommand(Command):
"""
Show information about one or more installed packages.
The output is in RFC-compliant mail header format.
"""
usage = """
%prog [options] <package> ..."""
ignore_require_venv = True
def add_options(self) -> None:
self.cmd_opts.add_option(
'-f', '--files',
dest='files',
action='store_true',
default=False,
help='Show the full list of installed files for each package.')
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[str]) -> int:
if not args:
logger.warning('ERROR: Please provide a package name or names.')
return ERROR
query = args
results = search_packages_info(query)
if not print_results(
results, list_files=options.files, verbose=options.verbose):
return ERROR
return SUCCESS
class _PackageInfo(NamedTuple):
name: str
version: str
location: str
requires: List[str]
required_by: List[str]
installer: str
metadata_version: str
classifiers: List[str]
summary: str
homepage: str
author: str
author_email: str
license: str
entry_points: List[str]
files: Optional[List[str]]
def _covert_legacy_entry(entry: Tuple[str, ...], info: Tuple[str, ...]) -> str:
"""Convert a legacy installed-files.txt path into modern RECORD path.
The legacy format stores paths relative to the info directory, while the
modern format stores paths relative to the package root, e.g. the
site-packages directory.
:param entry: Path parts of the installed-files.txt entry.
:param info: Path parts of the egg-info directory relative to package root.
:returns: The converted entry.
For best compatibility with symlinks, this does not use ``abspath()`` or
``Path.resolve()``, but tries to work with path parts:
1. While ``entry`` starts with ``..``, remove the equal amounts of parts
from ``info``; if ``info`` is empty, start appending ``..`` instead.
2. Join the two directly.
"""
while entry and entry[0] == "..":
if not info or info[-1] == "..":
info += ("..",)
else:
info = info[:-1]
entry = entry[1:]
return str(pathlib.Path(*info, *entry))
def search_packages_info(query: List[str]) -> Iterator[_PackageInfo]:
"""
Gather details from installed distributions. Print distribution name,
version, location, and installed files. Installed files requires a
pip generated 'installed-files.txt' in the distributions '.egg-info'
directory.
"""
env = get_default_environment()
installed = {
dist.canonical_name: dist
for dist in env.iter_distributions()
}
query_names = [canonicalize_name(name) for name in query]
missing = sorted(
[name for name, pkg in zip(query, query_names) if pkg not in installed]
)
if missing:
logger.warning('Package(s) not found: %s', ', '.join(missing))
def _get_requiring_packages(current_dist: BaseDistribution) -> List[str]:
return [
dist.metadata["Name"] or "UNKNOWN"
for dist in installed.values()
if current_dist.canonical_name in {
canonicalize_name(d.name) for d in dist.iter_dependencies()
}
]
def _files_from_record(dist: BaseDistribution) -> Optional[Iterator[str]]:
try:
text = dist.read_text('RECORD')
except FileNotFoundError:
return None
# This extra Path-str cast normalizes entries.
return (str(pathlib.Path(row[0])) for row in csv.reader(text.splitlines()))
def _files_from_legacy(dist: BaseDistribution) -> Optional[Iterator[str]]:
try:
text = dist.read_text('installed-files.txt')
except FileNotFoundError:
return None
paths = (p for p in text.splitlines(keepends=False) if p)
root = dist.location
info = dist.info_directory
if root is None or info is None:
return paths
try:
info_rel = pathlib.Path(info).relative_to(root)
except ValueError: # info is not relative to root.
return paths
if not info_rel.parts: # info *is* root.
return paths
return (
_covert_legacy_entry(pathlib.Path(p).parts, info_rel.parts)
for p in paths
)
for query_name in query_names:
try:
dist = installed[query_name]
except KeyError:
continue
try:
entry_points_text = dist.read_text('entry_points.txt')
entry_points = entry_points_text.splitlines(keepends=False)
except FileNotFoundError:
entry_points = []
files_iter = _files_from_record(dist) or _files_from_legacy(dist)
if files_iter is None:
files: Optional[List[str]] = None
else:
files = sorted(files_iter)
metadata = dist.metadata
yield _PackageInfo(
name=dist.raw_name,
version=str(dist.version),
location=dist.location or "",
requires=[req.name for req in dist.iter_dependencies()],
required_by=_get_requiring_packages(dist),
installer=dist.installer,
metadata_version=dist.metadata_version or "",
classifiers=metadata.get_all("Classifier", []),
summary=metadata.get("Summary", ""),
homepage=metadata.get("Home-page", ""),
author=metadata.get("Author", ""),
author_email=metadata.get("Author-email", ""),
license=metadata.get("License", ""),
entry_points=entry_points,
files=files,
)
def print_results(
distributions: Iterator[_PackageInfo],
list_files: bool,
verbose: bool,
) -> bool:
"""
Print the information from installed distributions found.
"""
results_printed = False
for i, dist in enumerate(distributions):
results_printed = True
if i > 0:
write_output("---")
write_output("Name: %s", dist.name)
write_output("Version: %s", dist.version)
write_output("Summary: %s", dist.summary)
write_output("Home-page: %s", dist.homepage)
write_output("Author: %s", dist.author)
write_output("Author-email: %s", dist.author_email)
write_output("License: %s", dist.license)
write_output("Location: %s", dist.location)
write_output("Requires: %s", ', '.join(dist.requires))
write_output("Required-by: %s", ', '.join(dist.required_by))
if verbose:
write_output("Metadata-Version: %s", dist.metadata_version)
write_output("Installer: %s", dist.installer)
write_output("Classifiers:")
for classifier in dist.classifiers:
write_output(" %s", classifier)
write_output("Entry-points:")
for entry in dist.entry_points:
write_output(" %s", entry.strip())
if list_files:
write_output("Files:")
if dist.files is None:
write_output("Cannot locate RECORD or installed-files.txt")
else:
for line in dist.files:
write_output(" %s", line.strip())
return results_printed

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import logging
from optparse import Values
from typing import List
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.cli.base_command import Command
from pip._internal.cli.req_command import SessionCommandMixin, warn_if_run_as_root
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.exceptions import InstallationError
from pip._internal.req import parse_requirements
from pip._internal.req.constructors import (
install_req_from_line,
install_req_from_parsed_requirement,
)
from pip._internal.utils.misc import protect_pip_from_modification_on_windows
logger = logging.getLogger(__name__)
class UninstallCommand(Command, SessionCommandMixin):
"""
Uninstall packages.
pip is able to uninstall most installed packages. Known exceptions are:
- Pure distutils packages installed with ``python setup.py install``, which
leave behind no metadata to determine what files were installed.
- Script wrappers installed by ``python setup.py develop``.
"""
usage = """
%prog [options] <package> ...
%prog [options] -r <requirements file> ..."""
def add_options(self) -> None:
self.cmd_opts.add_option(
'-r', '--requirement',
dest='requirements',
action='append',
default=[],
metavar='file',
help='Uninstall all the packages listed in the given requirements '
'file. This option can be used multiple times.',
)
self.cmd_opts.add_option(
'-y', '--yes',
dest='yes',
action='store_true',
help="Don't ask for confirmation of uninstall deletions.")
self.parser.insert_option_group(0, self.cmd_opts)
def run(self, options: Values, args: List[str]) -> int:
session = self.get_default_session(options)
reqs_to_uninstall = {}
for name in args:
req = install_req_from_line(
name, isolated=options.isolated_mode,
)
if req.name:
reqs_to_uninstall[canonicalize_name(req.name)] = req
else:
logger.warning(
"Invalid requirement: %r ignored -"
" the uninstall command expects named"
" requirements.",
name,
)
for filename in options.requirements:
for parsed_req in parse_requirements(
filename,
options=options,
session=session):
req = install_req_from_parsed_requirement(
parsed_req,
isolated=options.isolated_mode
)
if req.name:
reqs_to_uninstall[canonicalize_name(req.name)] = req
if not reqs_to_uninstall:
raise InstallationError(
f'You must give at least one requirement to {self.name} (see '
f'"pip help {self.name}")'
)
protect_pip_from_modification_on_windows(
modifying_pip="pip" in reqs_to_uninstall
)
for req in reqs_to_uninstall.values():
uninstall_pathset = req.uninstall(
auto_confirm=options.yes, verbose=self.verbosity > 0,
)
if uninstall_pathset:
uninstall_pathset.commit()
warn_if_run_as_root()
return SUCCESS

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import logging
import os
import shutil
from optparse import Values
from typing import List
from pip._internal.cache import WheelCache
from pip._internal.cli import cmdoptions
from pip._internal.cli.req_command import RequirementCommand, with_cleanup
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.exceptions import CommandError
from pip._internal.req.req_install import InstallRequirement
from pip._internal.req.req_tracker import get_requirement_tracker
from pip._internal.utils.misc import ensure_dir, normalize_path
from pip._internal.utils.temp_dir import TempDirectory
from pip._internal.wheel_builder import build, should_build_for_wheel_command
logger = logging.getLogger(__name__)
class WheelCommand(RequirementCommand):
"""
Build Wheel archives for your requirements and dependencies.
Wheel is a built-package format, and offers the advantage of not
recompiling your software during every install. For more details, see the
wheel docs: https://wheel.readthedocs.io/en/latest/
Requirements: setuptools>=0.8, and wheel.
'pip wheel' uses the bdist_wheel setuptools extension from the wheel
package to build individual wheels.
"""
usage = """
%prog [options] <requirement specifier> ...
%prog [options] -r <requirements file> ...
%prog [options] [-e] <vcs project url> ...
%prog [options] [-e] <local project path> ...
%prog [options] <archive url/path> ..."""
def add_options(self) -> None:
self.cmd_opts.add_option(
'-w', '--wheel-dir',
dest='wheel_dir',
metavar='dir',
default=os.curdir,
help=("Build wheels into <dir>, where the default is the "
"current working directory."),
)
self.cmd_opts.add_option(cmdoptions.no_binary())
self.cmd_opts.add_option(cmdoptions.only_binary())
self.cmd_opts.add_option(cmdoptions.prefer_binary())
self.cmd_opts.add_option(cmdoptions.no_build_isolation())
self.cmd_opts.add_option(cmdoptions.use_pep517())
self.cmd_opts.add_option(cmdoptions.no_use_pep517())
self.cmd_opts.add_option(cmdoptions.constraints())
self.cmd_opts.add_option(cmdoptions.editable())
self.cmd_opts.add_option(cmdoptions.requirements())
self.cmd_opts.add_option(cmdoptions.src())
self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
self.cmd_opts.add_option(cmdoptions.no_deps())
self.cmd_opts.add_option(cmdoptions.build_dir())
self.cmd_opts.add_option(cmdoptions.progress_bar())
self.cmd_opts.add_option(
'--no-verify',
dest='no_verify',
action='store_true',
default=False,
help="Don't verify if built wheel is valid.",
)
self.cmd_opts.add_option(cmdoptions.build_options())
self.cmd_opts.add_option(cmdoptions.global_options())
self.cmd_opts.add_option(
'--pre',
action='store_true',
default=False,
help=("Include pre-release and development versions. By default, "
"pip only finds stable versions."),
)
self.cmd_opts.add_option(cmdoptions.require_hashes())
index_opts = cmdoptions.make_option_group(
cmdoptions.index_group,
self.parser,
)
self.parser.insert_option_group(0, index_opts)
self.parser.insert_option_group(0, self.cmd_opts)
@with_cleanup
def run(self, options: Values, args: List[str]) -> int:
cmdoptions.check_install_build_global(options)
session = self.get_default_session(options)
finder = self._build_package_finder(options, session)
wheel_cache = WheelCache(options.cache_dir, options.format_control)
options.wheel_dir = normalize_path(options.wheel_dir)
ensure_dir(options.wheel_dir)
req_tracker = self.enter_context(get_requirement_tracker())
directory = TempDirectory(
delete=not options.no_clean,
kind="wheel",
globally_managed=True,
)
reqs = self.get_requirements(args, options, finder, session)
preparer = self.make_requirement_preparer(
temp_build_dir=directory,
options=options,
req_tracker=req_tracker,
session=session,
finder=finder,
download_dir=options.wheel_dir,
use_user_site=False,
)
resolver = self.make_resolver(
preparer=preparer,
finder=finder,
options=options,
wheel_cache=wheel_cache,
ignore_requires_python=options.ignore_requires_python,
use_pep517=options.use_pep517,
)
self.trace_basic_info(finder)
requirement_set = resolver.resolve(
reqs, check_supported_wheels=True
)
reqs_to_build: List[InstallRequirement] = []
for req in requirement_set.requirements.values():
if req.is_wheel:
preparer.save_linked_requirement(req)
elif should_build_for_wheel_command(req):
reqs_to_build.append(req)
# build wheels
build_successes, build_failures = build(
reqs_to_build,
wheel_cache=wheel_cache,
verify=(not options.no_verify),
build_options=options.build_options or [],
global_options=options.global_options or [],
)
for req in build_successes:
assert req.link and req.link.is_wheel
assert req.local_file_path
# copy from cache to target directory
try:
shutil.copy(req.local_file_path, options.wheel_dir)
except OSError as e:
logger.warning(
"Building wheel for %s failed: %s",
req.name, e,
)
build_failures.append(req)
if len(build_failures) != 0:
raise CommandError(
"Failed to build one or more wheels"
)
return SUCCESS

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"""Configuration management setup
Some terminology:
- name
As written in config files.
- value
Value associated with a name
- key
Name combined with it's section (section.name)
- variant
A single word describing where the configuration key-value pair came from
"""
import configparser
import locale
import logging
import os
import sys
from typing import Any, Dict, Iterable, List, NewType, Optional, Tuple
from pip._internal.exceptions import (
ConfigurationError,
ConfigurationFileCouldNotBeLoaded,
)
from pip._internal.utils import appdirs
from pip._internal.utils.compat import WINDOWS
from pip._internal.utils.misc import ensure_dir, enum
RawConfigParser = configparser.RawConfigParser # Shorthand
Kind = NewType("Kind", str)
CONFIG_BASENAME = 'pip.ini' if WINDOWS else 'pip.conf'
ENV_NAMES_IGNORED = "version", "help"
# The kinds of configurations there are.
kinds = enum(
USER="user", # User Specific
GLOBAL="global", # System Wide
SITE="site", # [Virtual] Environment Specific
ENV="env", # from PIP_CONFIG_FILE
ENV_VAR="env-var", # from Environment Variables
)
OVERRIDE_ORDER = kinds.GLOBAL, kinds.USER, kinds.SITE, kinds.ENV, kinds.ENV_VAR
VALID_LOAD_ONLY = kinds.USER, kinds.GLOBAL, kinds.SITE
logger = logging.getLogger(__name__)
# NOTE: Maybe use the optionx attribute to normalize keynames.
def _normalize_name(name):
# type: (str) -> str
"""Make a name consistent regardless of source (environment or file)
"""
name = name.lower().replace('_', '-')
if name.startswith('--'):
name = name[2:] # only prefer long opts
return name
def _disassemble_key(name):
# type: (str) -> List[str]
if "." not in name:
error_message = (
"Key does not contain dot separated section and key. "
"Perhaps you wanted to use 'global.{}' instead?"
).format(name)
raise ConfigurationError(error_message)
return name.split(".", 1)
def get_configuration_files():
# type: () -> Dict[Kind, List[str]]
global_config_files = [
os.path.join(path, CONFIG_BASENAME)
for path in appdirs.site_config_dirs('pip')
]
site_config_file = os.path.join(sys.prefix, CONFIG_BASENAME)
legacy_config_file = os.path.join(
os.path.expanduser('~'),
'pip' if WINDOWS else '.pip',
CONFIG_BASENAME,
)
new_config_file = os.path.join(
appdirs.user_config_dir("pip"), CONFIG_BASENAME
)
return {
kinds.GLOBAL: global_config_files,
kinds.SITE: [site_config_file],
kinds.USER: [legacy_config_file, new_config_file],
}
class Configuration:
"""Handles management of configuration.
Provides an interface to accessing and managing configuration files.
This class converts provides an API that takes "section.key-name" style
keys and stores the value associated with it as "key-name" under the
section "section".
This allows for a clean interface wherein the both the section and the
key-name are preserved in an easy to manage form in the configuration files
and the data stored is also nice.
"""
def __init__(self, isolated, load_only=None):
# type: (bool, Optional[Kind]) -> None
super().__init__()
if load_only is not None and load_only not in VALID_LOAD_ONLY:
raise ConfigurationError(
"Got invalid value for load_only - should be one of {}".format(
", ".join(map(repr, VALID_LOAD_ONLY))
)
)
self.isolated = isolated
self.load_only = load_only
# Because we keep track of where we got the data from
self._parsers = {
variant: [] for variant in OVERRIDE_ORDER
} # type: Dict[Kind, List[Tuple[str, RawConfigParser]]]
self._config = {
variant: {} for variant in OVERRIDE_ORDER
} # type: Dict[Kind, Dict[str, Any]]
self._modified_parsers = [] # type: List[Tuple[str, RawConfigParser]]
def load(self):
# type: () -> None
"""Loads configuration from configuration files and environment
"""
self._load_config_files()
if not self.isolated:
self._load_environment_vars()
def get_file_to_edit(self):
# type: () -> Optional[str]
"""Returns the file with highest priority in configuration
"""
assert self.load_only is not None, \
"Need to be specified a file to be editing"
try:
return self._get_parser_to_modify()[0]
except IndexError:
return None
def items(self):
# type: () -> Iterable[Tuple[str, Any]]
"""Returns key-value pairs like dict.items() representing the loaded
configuration
"""
return self._dictionary.items()
def get_value(self, key):
# type: (str) -> Any
"""Get a value from the configuration.
"""
try:
return self._dictionary[key]
except KeyError:
raise ConfigurationError(f"No such key - {key}")
def set_value(self, key, value):
# type: (str, Any) -> None
"""Modify a value in the configuration.
"""
self._ensure_have_load_only()
assert self.load_only
fname, parser = self._get_parser_to_modify()
if parser is not None:
section, name = _disassemble_key(key)
# Modify the parser and the configuration
if not parser.has_section(section):
parser.add_section(section)
parser.set(section, name, value)
self._config[self.load_only][key] = value
self._mark_as_modified(fname, parser)
def unset_value(self, key):
# type: (str) -> None
"""Unset a value in the configuration."""
self._ensure_have_load_only()
assert self.load_only
if key not in self._config[self.load_only]:
raise ConfigurationError(f"No such key - {key}")
fname, parser = self._get_parser_to_modify()
if parser is not None:
section, name = _disassemble_key(key)
if not (parser.has_section(section)
and parser.remove_option(section, name)):
# The option was not removed.
raise ConfigurationError(
"Fatal Internal error [id=1]. Please report as a bug."
)
# The section may be empty after the option was removed.
if not parser.items(section):
parser.remove_section(section)
self._mark_as_modified(fname, parser)
del self._config[self.load_only][key]
def save(self):
# type: () -> None
"""Save the current in-memory state.
"""
self._ensure_have_load_only()
for fname, parser in self._modified_parsers:
logger.info("Writing to %s", fname)
# Ensure directory exists.
ensure_dir(os.path.dirname(fname))
with open(fname, "w") as f:
parser.write(f)
#
# Private routines
#
def _ensure_have_load_only(self):
# type: () -> None
if self.load_only is None:
raise ConfigurationError("Needed a specific file to be modifying.")
logger.debug("Will be working with %s variant only", self.load_only)
@property
def _dictionary(self):
# type: () -> Dict[str, Any]
"""A dictionary representing the loaded configuration.
"""
# NOTE: Dictionaries are not populated if not loaded. So, conditionals
# are not needed here.
retval = {}
for variant in OVERRIDE_ORDER:
retval.update(self._config[variant])
return retval
def _load_config_files(self):
# type: () -> None
"""Loads configuration from configuration files
"""
config_files = dict(self.iter_config_files())
if config_files[kinds.ENV][0:1] == [os.devnull]:
logger.debug(
"Skipping loading configuration files due to "
"environment's PIP_CONFIG_FILE being os.devnull"
)
return
for variant, files in config_files.items():
for fname in files:
# If there's specific variant set in `load_only`, load only
# that variant, not the others.
if self.load_only is not None and variant != self.load_only:
logger.debug(
"Skipping file '%s' (variant: %s)", fname, variant
)
continue
parser = self._load_file(variant, fname)
# Keeping track of the parsers used
self._parsers[variant].append((fname, parser))
def _load_file(self, variant, fname):
# type: (Kind, str) -> RawConfigParser
logger.debug("For variant '%s', will try loading '%s'", variant, fname)
parser = self._construct_parser(fname)
for section in parser.sections():
items = parser.items(section)
self._config[variant].update(self._normalized_keys(section, items))
return parser
def _construct_parser(self, fname):
# type: (str) -> RawConfigParser
parser = configparser.RawConfigParser()
# If there is no such file, don't bother reading it but create the
# parser anyway, to hold the data.
# Doing this is useful when modifying and saving files, where we don't
# need to construct a parser.
if os.path.exists(fname):
try:
parser.read(fname)
except UnicodeDecodeError:
# See https://github.com/pypa/pip/issues/4963
raise ConfigurationFileCouldNotBeLoaded(
reason="contains invalid {} characters".format(
locale.getpreferredencoding(False)
),
fname=fname,
)
except configparser.Error as error:
# See https://github.com/pypa/pip/issues/4893
raise ConfigurationFileCouldNotBeLoaded(error=error)
return parser
def _load_environment_vars(self):
# type: () -> None
"""Loads configuration from environment variables
"""
self._config[kinds.ENV_VAR].update(
self._normalized_keys(":env:", self.get_environ_vars())
)
def _normalized_keys(self, section, items):
# type: (str, Iterable[Tuple[str, Any]]) -> Dict[str, Any]
"""Normalizes items to construct a dictionary with normalized keys.
This routine is where the names become keys and are made the same
regardless of source - configuration files or environment.
"""
normalized = {}
for name, val in items:
key = section + "." + _normalize_name(name)
normalized[key] = val
return normalized
def get_environ_vars(self):
# type: () -> Iterable[Tuple[str, str]]
"""Returns a generator with all environmental vars with prefix PIP_"""
for key, val in os.environ.items():
if key.startswith("PIP_"):
name = key[4:].lower()
if name not in ENV_NAMES_IGNORED:
yield name, val
# XXX: This is patched in the tests.
def iter_config_files(self):
# type: () -> Iterable[Tuple[Kind, List[str]]]
"""Yields variant and configuration files associated with it.
This should be treated like items of a dictionary.
"""
# SMELL: Move the conditions out of this function
# environment variables have the lowest priority
config_file = os.environ.get('PIP_CONFIG_FILE', None)
if config_file is not None:
yield kinds.ENV, [config_file]
else:
yield kinds.ENV, []
config_files = get_configuration_files()
# at the base we have any global configuration
yield kinds.GLOBAL, config_files[kinds.GLOBAL]
# per-user configuration next
should_load_user_config = not self.isolated and not (
config_file and os.path.exists(config_file)
)
if should_load_user_config:
# The legacy config file is overridden by the new config file
yield kinds.USER, config_files[kinds.USER]
# finally virtualenv configuration first trumping others
yield kinds.SITE, config_files[kinds.SITE]
def get_values_in_config(self, variant):
# type: (Kind) -> Dict[str, Any]
"""Get values present in a config file"""
return self._config[variant]
def _get_parser_to_modify(self):
# type: () -> Tuple[str, RawConfigParser]
# Determine which parser to modify
assert self.load_only
parsers = self._parsers[self.load_only]
if not parsers:
# This should not happen if everything works correctly.
raise ConfigurationError(
"Fatal Internal error [id=2]. Please report as a bug."
)
# Use the highest priority parser.
return parsers[-1]
# XXX: This is patched in the tests.
def _mark_as_modified(self, fname, parser):
# type: (str, RawConfigParser) -> None
file_parser_tuple = (fname, parser)
if file_parser_tuple not in self._modified_parsers:
self._modified_parsers.append(file_parser_tuple)
def __repr__(self):
# type: () -> str
return f"{self.__class__.__name__}({self._dictionary!r})"

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from pip._internal.distributions.base import AbstractDistribution
from pip._internal.distributions.sdist import SourceDistribution
from pip._internal.distributions.wheel import WheelDistribution
from pip._internal.req.req_install import InstallRequirement
def make_distribution_for_install_requirement(
install_req: InstallRequirement,
) -> AbstractDistribution:
"""Returns a Distribution for the given InstallRequirement"""
# Editable requirements will always be source distributions. They use the
# legacy logic until we create a modern standard for them.
if install_req.editable:
return SourceDistribution(install_req)
# If it's a wheel, it's a WheelDistribution
if install_req.is_wheel:
return WheelDistribution(install_req)
# Otherwise, a SourceDistribution
return SourceDistribution(install_req)

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import abc
from typing import Optional
from pip._vendor.pkg_resources import Distribution
from pip._internal.index.package_finder import PackageFinder
from pip._internal.req import InstallRequirement
class AbstractDistribution(metaclass=abc.ABCMeta):
"""A base class for handling installable artifacts.
The requirements for anything installable are as follows:
- we must be able to determine the requirement name
(or we can't correctly handle the non-upgrade case).
- for packages with setup requirements, we must also be able
to determine their requirements without installing additional
packages (for the same reason as run-time dependencies)
- we must be able to create a Distribution object exposing the
above metadata.
"""
def __init__(self, req: InstallRequirement) -> None:
super().__init__()
self.req = req
@abc.abstractmethod
def get_pkg_resources_distribution(self) -> Optional[Distribution]:
raise NotImplementedError()
@abc.abstractmethod
def prepare_distribution_metadata(
self, finder: PackageFinder, build_isolation: bool
) -> None:
raise NotImplementedError()

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from typing import Optional
from pip._vendor.pkg_resources import Distribution
from pip._internal.distributions.base import AbstractDistribution
from pip._internal.index.package_finder import PackageFinder
class InstalledDistribution(AbstractDistribution):
"""Represents an installed package.
This does not need any preparation as the required information has already
been computed.
"""
def get_pkg_resources_distribution(self) -> Optional[Distribution]:
return self.req.satisfied_by
def prepare_distribution_metadata(
self, finder: PackageFinder, build_isolation: bool
) -> None:
pass

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import logging
from typing import Set, Tuple
from pip._vendor.pkg_resources import Distribution
from pip._internal.build_env import BuildEnvironment
from pip._internal.distributions.base import AbstractDistribution
from pip._internal.exceptions import InstallationError
from pip._internal.index.package_finder import PackageFinder
from pip._internal.utils.subprocess import runner_with_spinner_message
logger = logging.getLogger(__name__)
class SourceDistribution(AbstractDistribution):
"""Represents a source distribution.
The preparation step for these needs metadata for the packages to be
generated, either using PEP 517 or using the legacy `setup.py egg_info`.
"""
def get_pkg_resources_distribution(self) -> Distribution:
return self.req.get_dist()
def prepare_distribution_metadata(
self, finder: PackageFinder, build_isolation: bool
) -> None:
# Load pyproject.toml, to determine whether PEP 517 is to be used
self.req.load_pyproject_toml()
# Set up the build isolation, if this requirement should be isolated
should_isolate = self.req.use_pep517 and build_isolation
if should_isolate:
self._setup_isolation(finder)
self.req.prepare_metadata()
def _setup_isolation(self, finder: PackageFinder) -> None:
def _raise_conflicts(
conflicting_with: str, conflicting_reqs: Set[Tuple[str, str]]
) -> None:
format_string = (
"Some build dependencies for {requirement} "
"conflict with {conflicting_with}: {description}."
)
error_message = format_string.format(
requirement=self.req,
conflicting_with=conflicting_with,
description=", ".join(
f"{installed} is incompatible with {wanted}"
for installed, wanted in sorted(conflicting)
),
)
raise InstallationError(error_message)
# Isolate in a BuildEnvironment and install the build-time
# requirements.
pyproject_requires = self.req.pyproject_requires
assert pyproject_requires is not None
self.req.build_env = BuildEnvironment()
self.req.build_env.install_requirements(
finder, pyproject_requires, "overlay", "Installing build dependencies"
)
conflicting, missing = self.req.build_env.check_requirements(
self.req.requirements_to_check
)
if conflicting:
_raise_conflicts("PEP 517/518 supported requirements", conflicting)
if missing:
logger.warning(
"Missing build requirements in pyproject.toml for %s.",
self.req,
)
logger.warning(
"The project does not specify a build backend, and "
"pip cannot fall back to setuptools without %s.",
" and ".join(map(repr, sorted(missing))),
)
# Install any extra build dependencies that the backend requests.
# This must be done in a second pass, as the pyproject.toml
# dependencies must be installed before we can call the backend.
with self.req.build_env:
runner = runner_with_spinner_message("Getting requirements to build wheel")
backend = self.req.pep517_backend
assert backend is not None
with backend.subprocess_runner(runner):
reqs = backend.get_requires_for_build_wheel()
conflicting, missing = self.req.build_env.check_requirements(reqs)
if conflicting:
_raise_conflicts("the backend dependencies", conflicting)
self.req.build_env.install_requirements(
finder, missing, "normal", "Installing backend dependencies"
)

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from zipfile import ZipFile
from pip._vendor.pkg_resources import Distribution
from pip._internal.distributions.base import AbstractDistribution
from pip._internal.index.package_finder import PackageFinder
from pip._internal.utils.wheel import pkg_resources_distribution_for_wheel
class WheelDistribution(AbstractDistribution):
"""Represents a wheel distribution.
This does not need any preparation as wheels can be directly unpacked.
"""
def get_pkg_resources_distribution(self) -> Distribution:
"""Loads the metadata from the wheel file into memory and returns a
Distribution that uses it, not relying on the wheel file or
requirement.
"""
# Set as part of preparation during download.
assert self.req.local_file_path
# Wheels are never unnamed.
assert self.req.name
with ZipFile(self.req.local_file_path, allowZip64=True) as z:
return pkg_resources_distribution_for_wheel(
z, self.req.name, self.req.local_file_path
)
def prepare_distribution_metadata(
self, finder: PackageFinder, build_isolation: bool
) -> None:
pass

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"""Exceptions used throughout package"""
import configparser
from itertools import chain, groupby, repeat
from typing import TYPE_CHECKING, Dict, List, Optional
from pip._vendor.pkg_resources import Distribution
from pip._vendor.requests.models import Request, Response
if TYPE_CHECKING:
from hashlib import _Hash
from pip._internal.req.req_install import InstallRequirement
class PipError(Exception):
"""Base pip exception"""
class ConfigurationError(PipError):
"""General exception in configuration"""
class InstallationError(PipError):
"""General exception during installation"""
class UninstallationError(PipError):
"""General exception during uninstallation"""
class NoneMetadataError(PipError):
"""
Raised when accessing "METADATA" or "PKG-INFO" metadata for a
pip._vendor.pkg_resources.Distribution object and
`dist.has_metadata('METADATA')` returns True but
`dist.get_metadata('METADATA')` returns None (and similarly for
"PKG-INFO").
"""
def __init__(self, dist, metadata_name):
# type: (Distribution, str) -> None
"""
:param dist: A Distribution object.
:param metadata_name: The name of the metadata being accessed
(can be "METADATA" or "PKG-INFO").
"""
self.dist = dist
self.metadata_name = metadata_name
def __str__(self):
# type: () -> str
# Use `dist` in the error message because its stringification
# includes more information, like the version and location.
return (
'None {} metadata found for distribution: {}'.format(
self.metadata_name, self.dist,
)
)
class UserInstallationInvalid(InstallationError):
"""A --user install is requested on an environment without user site."""
def __str__(self):
# type: () -> str
return "User base directory is not specified"
class InvalidSchemeCombination(InstallationError):
def __str__(self):
# type: () -> str
before = ", ".join(str(a) for a in self.args[:-1])
return f"Cannot set {before} and {self.args[-1]} together"
class DistributionNotFound(InstallationError):
"""Raised when a distribution cannot be found to satisfy a requirement"""
class RequirementsFileParseError(InstallationError):
"""Raised when a general error occurs parsing a requirements file line."""
class BestVersionAlreadyInstalled(PipError):
"""Raised when the most up-to-date version of a package is already
installed."""
class BadCommand(PipError):
"""Raised when virtualenv or a command is not found"""
class CommandError(PipError):
"""Raised when there is an error in command-line arguments"""
class PreviousBuildDirError(PipError):
"""Raised when there's a previous conflicting build directory"""
class NetworkConnectionError(PipError):
"""HTTP connection error"""
def __init__(self, error_msg, response=None, request=None):
# type: (str, Response, Request) -> None
"""
Initialize NetworkConnectionError with `request` and `response`
objects.
"""
self.response = response
self.request = request
self.error_msg = error_msg
if (self.response is not None and not self.request and
hasattr(response, 'request')):
self.request = self.response.request
super().__init__(error_msg, response, request)
def __str__(self):
# type: () -> str
return str(self.error_msg)
class InvalidWheelFilename(InstallationError):
"""Invalid wheel filename."""
class UnsupportedWheel(InstallationError):
"""Unsupported wheel."""
class MetadataInconsistent(InstallationError):
"""Built metadata contains inconsistent information.
This is raised when the metadata contains values (e.g. name and version)
that do not match the information previously obtained from sdist filename
or user-supplied ``#egg=`` value.
"""
def __init__(self, ireq, field, f_val, m_val):
# type: (InstallRequirement, str, str, str) -> None
self.ireq = ireq
self.field = field
self.f_val = f_val
self.m_val = m_val
def __str__(self):
# type: () -> str
template = (
"Requested {} has inconsistent {}: "
"filename has {!r}, but metadata has {!r}"
)
return template.format(self.ireq, self.field, self.f_val, self.m_val)
class InstallationSubprocessError(InstallationError):
"""A subprocess call failed during installation."""
def __init__(self, returncode, description):
# type: (int, str) -> None
self.returncode = returncode
self.description = description
def __str__(self):
# type: () -> str
return (
"Command errored out with exit status {}: {} "
"Check the logs for full command output."
).format(self.returncode, self.description)
class HashErrors(InstallationError):
"""Multiple HashError instances rolled into one for reporting"""
def __init__(self):
# type: () -> None
self.errors = [] # type: List[HashError]
def append(self, error):
# type: (HashError) -> None
self.errors.append(error)
def __str__(self):
# type: () -> str
lines = []
self.errors.sort(key=lambda e: e.order)
for cls, errors_of_cls in groupby(self.errors, lambda e: e.__class__):
lines.append(cls.head)
lines.extend(e.body() for e in errors_of_cls)
if lines:
return '\n'.join(lines)
return ''
def __nonzero__(self):
# type: () -> bool
return bool(self.errors)
def __bool__(self):
# type: () -> bool
return self.__nonzero__()
class HashError(InstallationError):
"""
A failure to verify a package against known-good hashes
:cvar order: An int sorting hash exception classes by difficulty of
recovery (lower being harder), so the user doesn't bother fretting
about unpinned packages when he has deeper issues, like VCS
dependencies, to deal with. Also keeps error reports in a
deterministic order.
:cvar head: A section heading for display above potentially many
exceptions of this kind
:ivar req: The InstallRequirement that triggered this error. This is
pasted on after the exception is instantiated, because it's not
typically available earlier.
"""
req = None # type: Optional[InstallRequirement]
head = ''
order = -1 # type: int
def body(self):
# type: () -> str
"""Return a summary of me for display under the heading.
This default implementation simply prints a description of the
triggering requirement.
:param req: The InstallRequirement that provoked this error, with
its link already populated by the resolver's _populate_link().
"""
return f' {self._requirement_name()}'
def __str__(self):
# type: () -> str
return f'{self.head}\n{self.body()}'
def _requirement_name(self):
# type: () -> str
"""Return a description of the requirement that triggered me.
This default implementation returns long description of the req, with
line numbers
"""
return str(self.req) if self.req else 'unknown package'
class VcsHashUnsupported(HashError):
"""A hash was provided for a version-control-system-based requirement, but
we don't have a method for hashing those."""
order = 0
head = ("Can't verify hashes for these requirements because we don't "
"have a way to hash version control repositories:")
class DirectoryUrlHashUnsupported(HashError):
"""A hash was provided for a version-control-system-based requirement, but
we don't have a method for hashing those."""
order = 1
head = ("Can't verify hashes for these file:// requirements because they "
"point to directories:")
class HashMissing(HashError):
"""A hash was needed for a requirement but is absent."""
order = 2
head = ('Hashes are required in --require-hashes mode, but they are '
'missing from some requirements. Here is a list of those '
'requirements along with the hashes their downloaded archives '
'actually had. Add lines like these to your requirements files to '
'prevent tampering. (If you did not enable --require-hashes '
'manually, note that it turns on automatically when any package '
'has a hash.)')
def __init__(self, gotten_hash):
# type: (str) -> None
"""
:param gotten_hash: The hash of the (possibly malicious) archive we
just downloaded
"""
self.gotten_hash = gotten_hash
def body(self):
# type: () -> str
# Dodge circular import.
from pip._internal.utils.hashes import FAVORITE_HASH
package = None
if self.req:
# In the case of URL-based requirements, display the original URL
# seen in the requirements file rather than the package name,
# so the output can be directly copied into the requirements file.
package = (self.req.original_link if self.req.original_link
# In case someone feeds something downright stupid
# to InstallRequirement's constructor.
else getattr(self.req, 'req', None))
return ' {} --hash={}:{}'.format(package or 'unknown package',
FAVORITE_HASH,
self.gotten_hash)
class HashUnpinned(HashError):
"""A requirement had a hash specified but was not pinned to a specific
version."""
order = 3
head = ('In --require-hashes mode, all requirements must have their '
'versions pinned with ==. These do not:')
class HashMismatch(HashError):
"""
Distribution file hash values don't match.
:ivar package_name: The name of the package that triggered the hash
mismatch. Feel free to write to this after the exception is raise to
improve its error message.
"""
order = 4
head = ('THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS '
'FILE. If you have updated the package versions, please update '
'the hashes. Otherwise, examine the package contents carefully; '
'someone may have tampered with them.')
def __init__(self, allowed, gots):
# type: (Dict[str, List[str]], Dict[str, _Hash]) -> None
"""
:param allowed: A dict of algorithm names pointing to lists of allowed
hex digests
:param gots: A dict of algorithm names pointing to hashes we
actually got from the files under suspicion
"""
self.allowed = allowed
self.gots = gots
def body(self):
# type: () -> str
return ' {}:\n{}'.format(self._requirement_name(),
self._hash_comparison())
def _hash_comparison(self):
# type: () -> str
"""
Return a comparison of actual and expected hash values.
Example::
Expected sha256 abcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcde
or 123451234512345123451234512345123451234512345
Got bcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdef
"""
def hash_then_or(hash_name):
# type: (str) -> chain[str]
# For now, all the decent hashes have 6-char names, so we can get
# away with hard-coding space literals.
return chain([hash_name], repeat(' or'))
lines = [] # type: List[str]
for hash_name, expecteds in self.allowed.items():
prefix = hash_then_or(hash_name)
lines.extend((' Expected {} {}'.format(next(prefix), e))
for e in expecteds)
lines.append(' Got {}\n'.format(
self.gots[hash_name].hexdigest()))
return '\n'.join(lines)
class UnsupportedPythonVersion(InstallationError):
"""Unsupported python version according to Requires-Python package
metadata."""
class ConfigurationFileCouldNotBeLoaded(ConfigurationError):
"""When there are errors while loading a configuration file
"""
def __init__(self, reason="could not be loaded", fname=None, error=None):
# type: (str, Optional[str], Optional[configparser.Error]) -> None
super().__init__(error)
self.reason = reason
self.fname = fname
self.error = error
def __str__(self):
# type: () -> str
if self.fname is not None:
message_part = f" in {self.fname}."
else:
assert self.error is not None
message_part = f".\n{self.error}\n"
return f"Configuration file {self.reason}{message_part}"

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"""Index interaction code
"""

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venv/Lib/site-packages/pip/_internal/index/collector.py Normal file
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"""
The main purpose of this module is to expose LinkCollector.collect_sources().
"""
import cgi
import collections
import functools
import html
import itertools
import logging
import os
import re
import urllib.parse
import urllib.request
import xml.etree.ElementTree
from optparse import Values
from typing import (
Callable,
Iterable,
List,
MutableMapping,
NamedTuple,
Optional,
Sequence,
Union,
)
from pip._vendor import html5lib, requests
from pip._vendor.requests import Response
from pip._vendor.requests.exceptions import RetryError, SSLError
from pip._internal.exceptions import NetworkConnectionError
from pip._internal.models.link import Link
from pip._internal.models.search_scope import SearchScope
from pip._internal.network.session import PipSession
from pip._internal.network.utils import raise_for_status
from pip._internal.utils.filetypes import is_archive_file
from pip._internal.utils.misc import pairwise, redact_auth_from_url
from pip._internal.vcs import vcs
from .sources import CandidatesFromPage, LinkSource, build_source
logger = logging.getLogger(__name__)
HTMLElement = xml.etree.ElementTree.Element
ResponseHeaders = MutableMapping[str, str]
def _match_vcs_scheme(url: str) -> Optional[str]:
"""Look for VCS schemes in the URL.
Returns the matched VCS scheme, or None if there's no match.
"""
for scheme in vcs.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
return scheme
return None
class _NotHTML(Exception):
def __init__(self, content_type: str, request_desc: str) -> None:
super().__init__(content_type, request_desc)
self.content_type = content_type
self.request_desc = request_desc
def _ensure_html_header(response: Response) -> None:
"""Check the Content-Type header to ensure the response contains HTML.
Raises `_NotHTML` if the content type is not text/html.
"""
content_type = response.headers.get("Content-Type", "")
if not content_type.lower().startswith("text/html"):
raise _NotHTML(content_type, response.request.method)
class _NotHTTP(Exception):
pass
def _ensure_html_response(url: str, session: PipSession) -> None:
"""Send a HEAD request to the URL, and ensure the response contains HTML.
Raises `_NotHTTP` if the URL is not available for a HEAD request, or
`_NotHTML` if the content type is not text/html.
"""
scheme, netloc, path, query, fragment = urllib.parse.urlsplit(url)
if scheme not in {'http', 'https'}:
raise _NotHTTP()
resp = session.head(url, allow_redirects=True)
raise_for_status(resp)
_ensure_html_header(resp)
def _get_html_response(url: str, session: PipSession) -> Response:
"""Access an HTML page with GET, and return the response.
This consists of three parts:
1. If the URL looks suspiciously like an archive, send a HEAD first to
check the Content-Type is HTML, to avoid downloading a large file.
Raise `_NotHTTP` if the content type cannot be determined, or
`_NotHTML` if it is not HTML.
2. Actually perform the request. Raise HTTP exceptions on network failures.
3. Check the Content-Type header to make sure we got HTML, and raise
`_NotHTML` otherwise.
"""
if is_archive_file(Link(url).filename):
_ensure_html_response(url, session=session)
logger.debug('Getting page %s', redact_auth_from_url(url))
resp = session.get(
url,
headers={
"Accept": "text/html",
# We don't want to blindly returned cached data for
# /simple/, because authors generally expecting that
# twine upload && pip install will function, but if
# they've done a pip install in the last ~10 minutes
# it won't. Thus by setting this to zero we will not
# blindly use any cached data, however the benefit of
# using max-age=0 instead of no-cache, is that we will
# still support conditional requests, so we will still
# minimize traffic sent in cases where the page hasn't
# changed at all, we will just always incur the round
# trip for the conditional GET now instead of only
# once per 10 minutes.
# For more information, please see pypa/pip#5670.
"Cache-Control": "max-age=0",
},
)
raise_for_status(resp)
# The check for archives above only works if the url ends with
# something that looks like an archive. However that is not a
# requirement of an url. Unless we issue a HEAD request on every
# url we cannot know ahead of time for sure if something is HTML
# or not. However we can check after we've downloaded it.
_ensure_html_header(resp)
return resp
def _get_encoding_from_headers(headers: ResponseHeaders) -> Optional[str]:
"""Determine if we have any encoding information in our headers.
"""
if headers and "Content-Type" in headers:
content_type, params = cgi.parse_header(headers["Content-Type"])
if "charset" in params:
return params['charset']
return None
def _determine_base_url(document: HTMLElement, page_url: str) -> str:
"""Determine the HTML document's base URL.
This looks for a ``<base>`` tag in the HTML document. If present, its href
attribute denotes the base URL of anchor tags in the document. If there is
no such tag (or if it does not have a valid href attribute), the HTML
file's URL is used as the base URL.
:param document: An HTML document representation. The current
implementation expects the result of ``html5lib.parse()``.
:param page_url: The URL of the HTML document.
"""
for base in document.findall(".//base"):
href = base.get("href")
if href is not None:
return href
return page_url
def _clean_url_path_part(part: str) -> str:
"""
Clean a "part" of a URL path (i.e. after splitting on "@" characters).
"""
# We unquote prior to quoting to make sure nothing is double quoted.
return urllib.parse.quote(urllib.parse.unquote(part))
def _clean_file_url_path(part: str) -> str:
"""
Clean the first part of a URL path that corresponds to a local
filesystem path (i.e. the first part after splitting on "@" characters).
"""
# We unquote prior to quoting to make sure nothing is double quoted.
# Also, on Windows the path part might contain a drive letter which
# should not be quoted. On Linux where drive letters do not
# exist, the colon should be quoted. We rely on urllib.request
# to do the right thing here.
return urllib.request.pathname2url(urllib.request.url2pathname(part))
# percent-encoded: /
_reserved_chars_re = re.compile('(@|%2F)', re.IGNORECASE)
def _clean_url_path(path: str, is_local_path: bool) -> str:
"""
Clean the path portion of a URL.
"""
if is_local_path:
clean_func = _clean_file_url_path
else:
clean_func = _clean_url_path_part
# Split on the reserved characters prior to cleaning so that
# revision strings in VCS URLs are properly preserved.
parts = _reserved_chars_re.split(path)
cleaned_parts = []
for to_clean, reserved in pairwise(itertools.chain(parts, [''])):
cleaned_parts.append(clean_func(to_clean))
# Normalize %xx escapes (e.g. %2f -> %2F)
cleaned_parts.append(reserved.upper())
return ''.join(cleaned_parts)
def _clean_link(url: str) -> str:
"""
Make sure a link is fully quoted.
For example, if ' ' occurs in the URL, it will be replaced with "%20",
and without double-quoting other characters.
"""
# Split the URL into parts according to the general structure
# `scheme://netloc/path;parameters?query#fragment`.
result = urllib.parse.urlparse(url)
# If the netloc is empty, then the URL refers to a local filesystem path.
is_local_path = not result.netloc
path = _clean_url_path(result.path, is_local_path=is_local_path)
return urllib.parse.urlunparse(result._replace(path=path))
def _create_link_from_element(
anchor: HTMLElement,
page_url: str,
base_url: str,
) -> Optional[Link]:
"""
Convert an anchor element in a simple repository page to a Link.
"""
href = anchor.get("href")
if not href:
return None
url = _clean_link(urllib.parse.urljoin(base_url, href))
pyrequire = anchor.get('data-requires-python')
pyrequire = html.unescape(pyrequire) if pyrequire else None
yanked_reason = anchor.get('data-yanked')
if yanked_reason:
yanked_reason = html.unescape(yanked_reason)
link = Link(
url,
comes_from=page_url,
requires_python=pyrequire,
yanked_reason=yanked_reason,
)
return link
class CacheablePageContent:
def __init__(self, page: "HTMLPage") -> None:
assert page.cache_link_parsing
self.page = page
def __eq__(self, other: object) -> bool:
return (isinstance(other, type(self)) and
self.page.url == other.page.url)
def __hash__(self) -> int:
return hash(self.page.url)
def with_cached_html_pages(
fn: Callable[["HTMLPage"], Iterable[Link]],
) -> Callable[["HTMLPage"], List[Link]]:
"""
Given a function that parses an Iterable[Link] from an HTMLPage, cache the
function's result (keyed by CacheablePageContent), unless the HTMLPage
`page` has `page.cache_link_parsing == False`.
"""
@functools.lru_cache(maxsize=None)
def wrapper(cacheable_page: CacheablePageContent) -> List[Link]:
return list(fn(cacheable_page.page))
@functools.wraps(fn)
def wrapper_wrapper(page: "HTMLPage") -> List[Link]:
if page.cache_link_parsing:
return wrapper(CacheablePageContent(page))
return list(fn(page))
return wrapper_wrapper
@with_cached_html_pages
def parse_links(page: "HTMLPage") -> Iterable[Link]:
"""
Parse an HTML document, and yield its anchor elements as Link objects.
"""
document = html5lib.parse(
page.content,
transport_encoding=page.encoding,
namespaceHTMLElements=False,
)
url = page.url
base_url = _determine_base_url(document, url)
for anchor in document.findall(".//a"):
link = _create_link_from_element(
anchor,
page_url=url,
base_url=base_url,
)
if link is None:
continue
yield link
class HTMLPage:
"""Represents one page, along with its URL"""
def __init__(
self,
content: bytes,
encoding: Optional[str],
url: str,
cache_link_parsing: bool = True,
) -> None:
"""
:param encoding: the encoding to decode the given content.
:param url: the URL from which the HTML was downloaded.
:param cache_link_parsing: whether links parsed from this page's url
should be cached. PyPI index urls should
have this set to False, for example.
"""
self.content = content
self.encoding = encoding
self.url = url
self.cache_link_parsing = cache_link_parsing
def __str__(self) -> str:
return redact_auth_from_url(self.url)
def _handle_get_page_fail(
link: Link,
reason: Union[str, Exception],
meth: Optional[Callable[..., None]] = None
) -> None:
if meth is None:
meth = logger.debug
meth("Could not fetch URL %s: %s - skipping", link, reason)
def _make_html_page(response: Response, cache_link_parsing: bool = True) -> HTMLPage:
encoding = _get_encoding_from_headers(response.headers)
return HTMLPage(
response.content,
encoding=encoding,
url=response.url,
cache_link_parsing=cache_link_parsing)
def _get_html_page(
link: Link, session: Optional[PipSession] = None
) -> Optional["HTMLPage"]:
if session is None:
raise TypeError(
"_get_html_page() missing 1 required keyword argument: 'session'"
)
url = link.url.split('#', 1)[0]
# Check for VCS schemes that do not support lookup as web pages.
vcs_scheme = _match_vcs_scheme(url)
if vcs_scheme:
logger.warning('Cannot look at %s URL %s because it does not support '
'lookup as web pages.', vcs_scheme, link)
return None
# Tack index.html onto file:// URLs that point to directories
scheme, _, path, _, _, _ = urllib.parse.urlparse(url)
if (scheme == 'file' and os.path.isdir(urllib.request.url2pathname(path))):
# add trailing slash if not present so urljoin doesn't trim
# final segment
if not url.endswith('/'):
url += '/'
url = urllib.parse.urljoin(url, 'index.html')
logger.debug(' file: URL is directory, getting %s', url)
try:
resp = _get_html_response(url, session=session)
except _NotHTTP:
logger.warning(
'Skipping page %s because it looks like an archive, and cannot '
'be checked by a HTTP HEAD request.', link,
)
except _NotHTML as exc:
logger.warning(
'Skipping page %s because the %s request got Content-Type: %s.'
'The only supported Content-Type is text/html',
link, exc.request_desc, exc.content_type,
)
except NetworkConnectionError as exc:
_handle_get_page_fail(link, exc)
except RetryError as exc:
_handle_get_page_fail(link, exc)
except SSLError as exc:
reason = "There was a problem confirming the ssl certificate: "
reason += str(exc)
_handle_get_page_fail(link, reason, meth=logger.info)
except requests.ConnectionError as exc:
_handle_get_page_fail(link, f"connection error: {exc}")
except requests.Timeout:
_handle_get_page_fail(link, "timed out")
else:
return _make_html_page(resp,
cache_link_parsing=link.cache_link_parsing)
return None
class CollectedSources(NamedTuple):
find_links: Sequence[Optional[LinkSource]]
index_urls: Sequence[Optional[LinkSource]]
class LinkCollector:
"""
Responsible for collecting Link objects from all configured locations,
making network requests as needed.
The class's main method is its collect_sources() method.
"""
def __init__(
self,
session: PipSession,
search_scope: SearchScope,
) -> None:
self.search_scope = search_scope
self.session = session
@classmethod
def create(
cls, session: PipSession,
options: Values,
suppress_no_index: bool = False
) -> "LinkCollector":
"""
:param session: The Session to use to make requests.
:param suppress_no_index: Whether to ignore the --no-index option
when constructing the SearchScope object.
"""
index_urls = [options.index_url] + options.extra_index_urls
if options.no_index and not suppress_no_index:
logger.debug(
'Ignoring indexes: %s',
','.join(redact_auth_from_url(url) for url in index_urls),
)
index_urls = []
# Make sure find_links is a list before passing to create().
find_links = options.find_links or []
search_scope = SearchScope.create(
find_links=find_links, index_urls=index_urls,
)
link_collector = LinkCollector(
session=session, search_scope=search_scope,
)
return link_collector
@property
def find_links(self) -> List[str]:
return self.search_scope.find_links
def fetch_page(self, location: Link) -> Optional[HTMLPage]:
"""
Fetch an HTML page containing package links.
"""
return _get_html_page(location, session=self.session)
def collect_sources(
self,
project_name: str,
candidates_from_page: CandidatesFromPage,
) -> CollectedSources:
# The OrderedDict calls deduplicate sources by URL.
index_url_sources = collections.OrderedDict(
build_source(
loc,
candidates_from_page=candidates_from_page,
page_validator=self.session.is_secure_origin,
expand_dir=False,
cache_link_parsing=False,
)
for loc in self.search_scope.get_index_urls_locations(project_name)
).values()
find_links_sources = collections.OrderedDict(
build_source(
loc,
candidates_from_page=candidates_from_page,
page_validator=self.session.is_secure_origin,
expand_dir=True,
cache_link_parsing=True,
)
for loc in self.find_links
).values()
if logger.isEnabledFor(logging.DEBUG):
lines = [
f"* {s.link}"
for s in itertools.chain(find_links_sources, index_url_sources)
if s is not None and s.link is not None
]
lines = [
f"{len(lines)} location(s) to search "
f"for versions of {project_name}:"
] + lines
logger.debug("\n".join(lines))
return CollectedSources(
find_links=list(find_links_sources),
index_urls=list(index_url_sources),
)

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"""Routines related to PyPI, indexes"""
# The following comment should be removed at some point in the future.
# mypy: strict-optional=False
import functools
import itertools
import logging
import re
from typing import FrozenSet, Iterable, List, Optional, Set, Tuple, Union
from pip._vendor.packaging import specifiers
from pip._vendor.packaging.tags import Tag
from pip._vendor.packaging.utils import canonicalize_name
from pip._vendor.packaging.version import _BaseVersion
from pip._vendor.packaging.version import parse as parse_version
from pip._internal.exceptions import (
BestVersionAlreadyInstalled,
DistributionNotFound,
InvalidWheelFilename,
UnsupportedWheel,
)
from pip._internal.index.collector import LinkCollector, parse_links
from pip._internal.models.candidate import InstallationCandidate
from pip._internal.models.format_control import FormatControl
from pip._internal.models.link import Link
from pip._internal.models.search_scope import SearchScope
from pip._internal.models.selection_prefs import SelectionPreferences
from pip._internal.models.target_python import TargetPython
from pip._internal.models.wheel import Wheel
from pip._internal.req import InstallRequirement
from pip._internal.utils._log import getLogger
from pip._internal.utils.filetypes import WHEEL_EXTENSION
from pip._internal.utils.hashes import Hashes
from pip._internal.utils.logging import indent_log
from pip._internal.utils.misc import build_netloc
from pip._internal.utils.packaging import check_requires_python
from pip._internal.utils.unpacking import SUPPORTED_EXTENSIONS
from pip._internal.utils.urls import url_to_path
__all__ = ['FormatControl', 'BestCandidateResult', 'PackageFinder']
logger = getLogger(__name__)
BuildTag = Union[Tuple[()], Tuple[int, str]]
CandidateSortingKey = (
Tuple[int, int, int, _BaseVersion, Optional[int], BuildTag]
)
def _check_link_requires_python(
link: Link,
version_info: Tuple[int, int, int],
ignore_requires_python: bool = False,
) -> bool:
"""
Return whether the given Python version is compatible with a link's
"Requires-Python" value.
:param version_info: A 3-tuple of ints representing the Python
major-minor-micro version to check.
:param ignore_requires_python: Whether to ignore the "Requires-Python"
value if the given Python version isn't compatible.
"""
try:
is_compatible = check_requires_python(
link.requires_python, version_info=version_info,
)
except specifiers.InvalidSpecifier:
logger.debug(
"Ignoring invalid Requires-Python (%r) for link: %s",
link.requires_python, link,
)
else:
if not is_compatible:
version = '.'.join(map(str, version_info))
if not ignore_requires_python:
logger.verbose(
'Link requires a different Python (%s not in: %r): %s',
version, link.requires_python, link,
)
return False
logger.debug(
'Ignoring failed Requires-Python check (%s not in: %r) '
'for link: %s',
version, link.requires_python, link,
)
return True
class LinkEvaluator:
"""
Responsible for evaluating links for a particular project.
"""
_py_version_re = re.compile(r'-py([123]\.?[0-9]?)$')
# Don't include an allow_yanked default value to make sure each call
# site considers whether yanked releases are allowed. This also causes
# that decision to be made explicit in the calling code, which helps
# people when reading the code.
def __init__(
self,
project_name: str,
canonical_name: str,
formats: FrozenSet[str],
target_python: TargetPython,
allow_yanked: bool,
ignore_requires_python: Optional[bool] = None,
) -> None:
"""
:param project_name: The user supplied package name.
:param canonical_name: The canonical package name.
:param formats: The formats allowed for this package. Should be a set
with 'binary' or 'source' or both in it.
:param target_python: The target Python interpreter to use when
evaluating link compatibility. This is used, for example, to
check wheel compatibility, as well as when checking the Python
version, e.g. the Python version embedded in a link filename
(or egg fragment) and against an HTML link's optional PEP 503
"data-requires-python" attribute.
:param allow_yanked: Whether files marked as yanked (in the sense
of PEP 592) are permitted to be candidates for install.
:param ignore_requires_python: Whether to ignore incompatible
PEP 503 "data-requires-python" values in HTML links. Defaults
to False.
"""
if ignore_requires_python is None:
ignore_requires_python = False
self._allow_yanked = allow_yanked
self._canonical_name = canonical_name
self._ignore_requires_python = ignore_requires_python
self._formats = formats
self._target_python = target_python
self.project_name = project_name
def evaluate_link(self, link: Link) -> Tuple[bool, Optional[str]]:
"""
Determine whether a link is a candidate for installation.
:return: A tuple (is_candidate, result), where `result` is (1) a
version string if `is_candidate` is True, and (2) if
`is_candidate` is False, an optional string to log the reason
the link fails to qualify.
"""
version = None
if link.is_yanked and not self._allow_yanked:
reason = link.yanked_reason or '<none given>'
return (False, f'yanked for reason: {reason}')
if link.egg_fragment:
egg_info = link.egg_fragment
ext = link.ext
else:
egg_info, ext = link.splitext()
if not ext:
return (False, 'not a file')
if ext not in SUPPORTED_EXTENSIONS:
return (False, f'unsupported archive format: {ext}')
if "binary" not in self._formats and ext == WHEEL_EXTENSION:
reason = 'No binaries permitted for {}'.format(
self.project_name)
return (False, reason)
if "macosx10" in link.path and ext == '.zip':
return (False, 'macosx10 one')
if ext == WHEEL_EXTENSION:
try:
wheel = Wheel(link.filename)
except InvalidWheelFilename:
return (False, 'invalid wheel filename')
if canonicalize_name(wheel.name) != self._canonical_name:
reason = 'wrong project name (not {})'.format(
self.project_name)
return (False, reason)
supported_tags = self._target_python.get_tags()
if not wheel.supported(supported_tags):
# Include the wheel's tags in the reason string to
# simplify troubleshooting compatibility issues.
file_tags = wheel.get_formatted_file_tags()
reason = (
"none of the wheel's tags ({}) are compatible "
"(run pip debug --verbose to show compatible tags)".format(
', '.join(file_tags)
)
)
return (False, reason)
version = wheel.version
# This should be up by the self.ok_binary check, but see issue 2700.
if "source" not in self._formats and ext != WHEEL_EXTENSION:
reason = f'No sources permitted for {self.project_name}'
return (False, reason)
if not version:
version = _extract_version_from_fragment(
egg_info, self._canonical_name,
)
if not version:
reason = f'Missing project version for {self.project_name}'
return (False, reason)
match = self._py_version_re.search(version)
if match:
version = version[:match.start()]
py_version = match.group(1)
if py_version != self._target_python.py_version:
return (False, 'Python version is incorrect')
supports_python = _check_link_requires_python(
link, version_info=self._target_python.py_version_info,
ignore_requires_python=self._ignore_requires_python,
)
if not supports_python:
# Return None for the reason text to suppress calling
# _log_skipped_link().
return (False, None)
logger.debug('Found link %s, version: %s', link, version)
return (True, version)
def filter_unallowed_hashes(
candidates: List[InstallationCandidate],
hashes: Hashes,
project_name: str,
) -> List[InstallationCandidate]:
"""
Filter out candidates whose hashes aren't allowed, and return a new
list of candidates.
If at least one candidate has an allowed hash, then all candidates with
either an allowed hash or no hash specified are returned. Otherwise,
the given candidates are returned.
Including the candidates with no hash specified when there is a match
allows a warning to be logged if there is a more preferred candidate
with no hash specified. Returning all candidates in the case of no
matches lets pip report the hash of the candidate that would otherwise
have been installed (e.g. permitting the user to more easily update
their requirements file with the desired hash).
"""
if not hashes:
logger.debug(
'Given no hashes to check %s links for project %r: '
'discarding no candidates',
len(candidates),
project_name,
)
# Make sure we're not returning back the given value.
return list(candidates)
matches_or_no_digest = []
# Collect the non-matches for logging purposes.
non_matches = []
match_count = 0
for candidate in candidates:
link = candidate.link
if not link.has_hash:
pass
elif link.is_hash_allowed(hashes=hashes):
match_count += 1
else:
non_matches.append(candidate)
continue
matches_or_no_digest.append(candidate)
if match_count:
filtered = matches_or_no_digest
else:
# Make sure we're not returning back the given value.
filtered = list(candidates)
if len(filtered) == len(candidates):
discard_message = 'discarding no candidates'
else:
discard_message = 'discarding {} non-matches:\n {}'.format(
len(non_matches),
'\n '.join(str(candidate.link) for candidate in non_matches)
)
logger.debug(
'Checked %s links for project %r against %s hashes '
'(%s matches, %s no digest): %s',
len(candidates),
project_name,
hashes.digest_count,
match_count,
len(matches_or_no_digest) - match_count,
discard_message
)
return filtered
class CandidatePreferences:
"""
Encapsulates some of the preferences for filtering and sorting
InstallationCandidate objects.
"""
def __init__(
self,
prefer_binary: bool = False,
allow_all_prereleases: bool = False,
) -> None:
"""
:param allow_all_prereleases: Whether to allow all pre-releases.
"""
self.allow_all_prereleases = allow_all_prereleases
self.prefer_binary = prefer_binary
class BestCandidateResult:
"""A collection of candidates, returned by `PackageFinder.find_best_candidate`.
This class is only intended to be instantiated by CandidateEvaluator's
`compute_best_candidate()` method.
"""
def __init__(
self,
candidates: List[InstallationCandidate],
applicable_candidates: List[InstallationCandidate],
best_candidate: Optional[InstallationCandidate],
) -> None:
"""
:param candidates: A sequence of all available candidates found.
:param applicable_candidates: The applicable candidates.
:param best_candidate: The most preferred candidate found, or None
if no applicable candidates were found.
"""
assert set(applicable_candidates) <= set(candidates)
if best_candidate is None:
assert not applicable_candidates
else:
assert best_candidate in applicable_candidates
self._applicable_candidates = applicable_candidates
self._candidates = candidates
self.best_candidate = best_candidate
def iter_all(self) -> Iterable[InstallationCandidate]:
"""Iterate through all candidates.
"""
return iter(self._candidates)
def iter_applicable(self) -> Iterable[InstallationCandidate]:
"""Iterate through the applicable candidates.
"""
return iter(self._applicable_candidates)
class CandidateEvaluator:
"""
Responsible for filtering and sorting candidates for installation based
on what tags are valid.
"""
@classmethod
def create(
cls,
project_name: str,
target_python: Optional[TargetPython] = None,
prefer_binary: bool = False,
allow_all_prereleases: bool = False,
specifier: Optional[specifiers.BaseSpecifier] = None,
hashes: Optional[Hashes] = None,
) -> "CandidateEvaluator":
"""Create a CandidateEvaluator object.
:param target_python: The target Python interpreter to use when
checking compatibility. If None (the default), a TargetPython
object will be constructed from the running Python.
:param specifier: An optional object implementing `filter`
(e.g. `packaging.specifiers.SpecifierSet`) to filter applicable
versions.
:param hashes: An optional collection of allowed hashes.
"""
if target_python is None:
target_python = TargetPython()
if specifier is None:
specifier = specifiers.SpecifierSet()
supported_tags = target_python.get_tags()
return cls(
project_name=project_name,
supported_tags=supported_tags,
specifier=specifier,
prefer_binary=prefer_binary,
allow_all_prereleases=allow_all_prereleases,
hashes=hashes,
)
def __init__(
self,
project_name: str,
supported_tags: List[Tag],
specifier: specifiers.BaseSpecifier,
prefer_binary: bool = False,
allow_all_prereleases: bool = False,
hashes: Optional[Hashes] = None,
) -> None:
"""
:param supported_tags: The PEP 425 tags supported by the target
Python in order of preference (most preferred first).
"""
self._allow_all_prereleases = allow_all_prereleases
self._hashes = hashes
self._prefer_binary = prefer_binary
self._project_name = project_name
self._specifier = specifier
self._supported_tags = supported_tags
# Since the index of the tag in the _supported_tags list is used
# as a priority, precompute a map from tag to index/priority to be
# used in wheel.find_most_preferred_tag.
self._wheel_tag_preferences = {
tag: idx for idx, tag in enumerate(supported_tags)
}
def get_applicable_candidates(
self,
candidates: List[InstallationCandidate],
) -> List[InstallationCandidate]:
"""
Return the applicable candidates from a list of candidates.
"""
# Using None infers from the specifier instead.
allow_prereleases = self._allow_all_prereleases or None
specifier = self._specifier
versions = {
str(v) for v in specifier.filter(
# We turn the version object into a str here because otherwise
# when we're debundled but setuptools isn't, Python will see
# packaging.version.Version and
# pkg_resources._vendor.packaging.version.Version as different
# types. This way we'll use a str as a common data interchange
# format. If we stop using the pkg_resources provided specifier
# and start using our own, we can drop the cast to str().
(str(c.version) for c in candidates),
prereleases=allow_prereleases,
)
}
# Again, converting version to str to deal with debundling.
applicable_candidates = [
c for c in candidates if str(c.version) in versions
]
filtered_applicable_candidates = filter_unallowed_hashes(
candidates=applicable_candidates,
hashes=self._hashes,
project_name=self._project_name,
)
return sorted(filtered_applicable_candidates, key=self._sort_key)
def _sort_key(self, candidate: InstallationCandidate) -> CandidateSortingKey:
"""
Function to pass as the `key` argument to a call to sorted() to sort
InstallationCandidates by preference.
Returns a tuple such that tuples sorting as greater using Python's
default comparison operator are more preferred.
The preference is as follows:
First and foremost, candidates with allowed (matching) hashes are
always preferred over candidates without matching hashes. This is
because e.g. if the only candidate with an allowed hash is yanked,
we still want to use that candidate.
Second, excepting hash considerations, candidates that have been
yanked (in the sense of PEP 592) are always less preferred than
candidates that haven't been yanked. Then:
If not finding wheels, they are sorted by version only.
If finding wheels, then the sort order is by version, then:
1. existing installs
2. wheels ordered via Wheel.support_index_min(self._supported_tags)
3. source archives
If prefer_binary was set, then all wheels are sorted above sources.
Note: it was considered to embed this logic into the Link
comparison operators, but then different sdist links
with the same version, would have to be considered equal
"""
valid_tags = self._supported_tags
support_num = len(valid_tags)
build_tag: BuildTag = ()
binary_preference = 0
link = candidate.link
if link.is_wheel:
# can raise InvalidWheelFilename
wheel = Wheel(link.filename)
try:
pri = -(wheel.find_most_preferred_tag(
valid_tags, self._wheel_tag_preferences
))
except ValueError:
raise UnsupportedWheel(
"{} is not a supported wheel for this platform. It "
"can't be sorted.".format(wheel.filename)
)
if self._prefer_binary:
binary_preference = 1
if wheel.build_tag is not None:
match = re.match(r'^(\d+)(.*)$', wheel.build_tag)
build_tag_groups = match.groups()
build_tag = (int(build_tag_groups[0]), build_tag_groups[1])
else: # sdist
pri = -(support_num)
has_allowed_hash = int(link.is_hash_allowed(self._hashes))
yank_value = -1 * int(link.is_yanked) # -1 for yanked.
return (
has_allowed_hash, yank_value, binary_preference, candidate.version,
pri, build_tag,
)
def sort_best_candidate(
self,
candidates: List[InstallationCandidate],
) -> Optional[InstallationCandidate]:
"""
Return the best candidate per the instance's sort order, or None if
no candidate is acceptable.
"""
if not candidates:
return None
best_candidate = max(candidates, key=self._sort_key)
return best_candidate
def compute_best_candidate(
self,
candidates: List[InstallationCandidate],
) -> BestCandidateResult:
"""
Compute and return a `BestCandidateResult` instance.
"""
applicable_candidates = self.get_applicable_candidates(candidates)
best_candidate = self.sort_best_candidate(applicable_candidates)
return BestCandidateResult(
candidates,
applicable_candidates=applicable_candidates,
best_candidate=best_candidate,
)
class PackageFinder:
"""This finds packages.
This is meant to match easy_install's technique for looking for
packages, by reading pages and looking for appropriate links.
"""
def __init__(
self,
link_collector: LinkCollector,
target_python: TargetPython,
allow_yanked: bool,
format_control: Optional[FormatControl] = None,
candidate_prefs: Optional[CandidatePreferences] = None,
ignore_requires_python: Optional[bool] = None,
) -> None:
"""
This constructor is primarily meant to be used by the create() class
method and from tests.
:param format_control: A FormatControl object, used to control
the selection of source packages / binary packages when consulting
the index and links.
:param candidate_prefs: Options to use when creating a
CandidateEvaluator object.
"""
if candidate_prefs is None:
candidate_prefs = CandidatePreferences()
format_control = format_control or FormatControl(set(), set())
self._allow_yanked = allow_yanked
self._candidate_prefs = candidate_prefs
self._ignore_requires_python = ignore_requires_python
self._link_collector = link_collector
self._target_python = target_python
self.format_control = format_control
# These are boring links that have already been logged somehow.
self._logged_links: Set[Link] = set()
# Don't include an allow_yanked default value to make sure each call
# site considers whether yanked releases are allowed. This also causes
# that decision to be made explicit in the calling code, which helps
# people when reading the code.
@classmethod
def create(
cls,
link_collector: LinkCollector,
selection_prefs: SelectionPreferences,
target_python: Optional[TargetPython] = None,
) -> "PackageFinder":
"""Create a PackageFinder.
:param selection_prefs: The candidate selection preferences, as a
SelectionPreferences object.
:param target_python: The target Python interpreter to use when
checking compatibility. If None (the default), a TargetPython
object will be constructed from the running Python.
"""
if target_python is None:
target_python = TargetPython()
candidate_prefs = CandidatePreferences(
prefer_binary=selection_prefs.prefer_binary,
allow_all_prereleases=selection_prefs.allow_all_prereleases,
)
return cls(
candidate_prefs=candidate_prefs,
link_collector=link_collector,
target_python=target_python,
allow_yanked=selection_prefs.allow_yanked,
format_control=selection_prefs.format_control,
ignore_requires_python=selection_prefs.ignore_requires_python,
)
@property
def target_python(self) -> TargetPython:
return self._target_python
@property
def search_scope(self) -> SearchScope:
return self._link_collector.search_scope
@search_scope.setter
def search_scope(self, search_scope: SearchScope) -> None:
self._link_collector.search_scope = search_scope
@property
def find_links(self) -> List[str]:
return self._link_collector.find_links
@property
def index_urls(self) -> List[str]:
return self.search_scope.index_urls
@property
def trusted_hosts(self) -> Iterable[str]:
for host_port in self._link_collector.session.pip_trusted_origins:
yield build_netloc(*host_port)
@property
def allow_all_prereleases(self) -> bool:
return self._candidate_prefs.allow_all_prereleases
def set_allow_all_prereleases(self) -> None:
self._candidate_prefs.allow_all_prereleases = True
@property
def prefer_binary(self) -> bool:
return self._candidate_prefs.prefer_binary
def set_prefer_binary(self) -> None:
self._candidate_prefs.prefer_binary = True
def make_link_evaluator(self, project_name: str) -> LinkEvaluator:
canonical_name = canonicalize_name(project_name)
formats = self.format_control.get_allowed_formats(canonical_name)
return LinkEvaluator(
project_name=project_name,
canonical_name=canonical_name,
formats=formats,
target_python=self._target_python,
allow_yanked=self._allow_yanked,
ignore_requires_python=self._ignore_requires_python,
)
def _sort_links(self, links: Iterable[Link]) -> List[Link]:
"""
Returns elements of links in order, non-egg links first, egg links
second, while eliminating duplicates
"""
eggs, no_eggs = [], []
seen: Set[Link] = set()
for link in links:
if link not in seen:
seen.add(link)
if link.egg_fragment:
eggs.append(link)
else:
no_eggs.append(link)
return no_eggs + eggs
def _log_skipped_link(self, link: Link, reason: str) -> None:
if link not in self._logged_links:
# Put the link at the end so the reason is more visible and because
# the link string is usually very long.
logger.debug('Skipping link: %s: %s', reason, link)
self._logged_links.add(link)
def get_install_candidate(
self, link_evaluator: LinkEvaluator, link: Link
) -> Optional[InstallationCandidate]:
"""
If the link is a candidate for install, convert it to an
InstallationCandidate and return it. Otherwise, return None.
"""
is_candidate, result = link_evaluator.evaluate_link(link)
if not is_candidate:
if result:
self._log_skipped_link(link, reason=result)
return None
return InstallationCandidate(
name=link_evaluator.project_name,
link=link,
version=result,
)
def evaluate_links(
self, link_evaluator: LinkEvaluator, links: Iterable[Link]
) -> List[InstallationCandidate]:
"""
Convert links that are candidates to InstallationCandidate objects.
"""
candidates = []
for link in self._sort_links(links):
candidate = self.get_install_candidate(link_evaluator, link)
if candidate is not None:
candidates.append(candidate)
return candidates
def process_project_url(
self, project_url: Link, link_evaluator: LinkEvaluator
) -> List[InstallationCandidate]:
logger.debug(
'Fetching project page and analyzing links: %s', project_url,
)
html_page = self._link_collector.fetch_page(project_url)
if html_page is None:
return []
page_links = list(parse_links(html_page))
with indent_log():
package_links = self.evaluate_links(
link_evaluator,
links=page_links,
)
return package_links
@functools.lru_cache(maxsize=None)
def find_all_candidates(self, project_name: str) -> List[InstallationCandidate]:
"""Find all available InstallationCandidate for project_name
This checks index_urls and find_links.
All versions found are returned as an InstallationCandidate list.
See LinkEvaluator.evaluate_link() for details on which files
are accepted.
"""
link_evaluator = self.make_link_evaluator(project_name)
collected_sources = self._link_collector.collect_sources(
project_name=project_name,
candidates_from_page=functools.partial(
self.process_project_url,
link_evaluator=link_evaluator,
),
)
page_candidates_it = itertools.chain.from_iterable(
source.page_candidates()
for sources in collected_sources
for source in sources
if source is not None
)
page_candidates = list(page_candidates_it)
file_links_it = itertools.chain.from_iterable(
source.file_links()
for sources in collected_sources
for source in sources
if source is not None
)
file_candidates = self.evaluate_links(
link_evaluator,
sorted(file_links_it, reverse=True),
)
if logger.isEnabledFor(logging.DEBUG) and file_candidates:
paths = [url_to_path(c.link.url) for c in file_candidates]
logger.debug("Local files found: %s", ", ".join(paths))
# This is an intentional priority ordering
return file_candidates + page_candidates
def make_candidate_evaluator(
self,
project_name: str,
specifier: Optional[specifiers.BaseSpecifier] = None,
hashes: Optional[Hashes] = None,
) -> CandidateEvaluator:
"""Create a CandidateEvaluator object to use.
"""
candidate_prefs = self._candidate_prefs
return CandidateEvaluator.create(
project_name=project_name,
target_python=self._target_python,
prefer_binary=candidate_prefs.prefer_binary,
allow_all_prereleases=candidate_prefs.allow_all_prereleases,
specifier=specifier,
hashes=hashes,
)
@functools.lru_cache(maxsize=None)
def find_best_candidate(
self,
project_name: str,
specifier: Optional[specifiers.BaseSpecifier] = None,
hashes: Optional[Hashes] = None,
) -> BestCandidateResult:
"""Find matches for the given project and specifier.
:param specifier: An optional object implementing `filter`
(e.g. `packaging.specifiers.SpecifierSet`) to filter applicable
versions.
:return: A `BestCandidateResult` instance.
"""
candidates = self.find_all_candidates(project_name)
candidate_evaluator = self.make_candidate_evaluator(
project_name=project_name,
specifier=specifier,
hashes=hashes,
)
return candidate_evaluator.compute_best_candidate(candidates)
def find_requirement(
self, req: InstallRequirement, upgrade: bool
) -> Optional[InstallationCandidate]:
"""Try to find a Link matching req
Expects req, an InstallRequirement and upgrade, a boolean
Returns a InstallationCandidate if found,
Raises DistributionNotFound or BestVersionAlreadyInstalled otherwise
"""
hashes = req.hashes(trust_internet=False)
best_candidate_result = self.find_best_candidate(
req.name, specifier=req.specifier, hashes=hashes,
)
best_candidate = best_candidate_result.best_candidate
installed_version: Optional[_BaseVersion] = None
if req.satisfied_by is not None:
installed_version = parse_version(req.satisfied_by.version)
def _format_versions(cand_iter: Iterable[InstallationCandidate]) -> str:
# This repeated parse_version and str() conversion is needed to
# handle different vendoring sources from pip and pkg_resources.
# If we stop using the pkg_resources provided specifier and start
# using our own, we can drop the cast to str().
return ", ".join(sorted(
{str(c.version) for c in cand_iter},
key=parse_version,
)) or "none"
if installed_version is None and best_candidate is None:
logger.critical(
'Could not find a version that satisfies the requirement %s '
'(from versions: %s)',
req,
_format_versions(best_candidate_result.iter_all()),
)
raise DistributionNotFound(
'No matching distribution found for {}'.format(
req)
)
best_installed = False
if installed_version and (
best_candidate is None or
best_candidate.version <= installed_version):
best_installed = True
if not upgrade and installed_version is not None:
if best_installed:
logger.debug(
'Existing installed version (%s) is most up-to-date and '
'satisfies requirement',
installed_version,
)
else:
logger.debug(
'Existing installed version (%s) satisfies requirement '
'(most up-to-date version is %s)',
installed_version,
best_candidate.version,
)
return None
if best_installed:
# We have an existing version, and its the best version
logger.debug(
'Installed version (%s) is most up-to-date (past versions: '
'%s)',
installed_version,
_format_versions(best_candidate_result.iter_applicable()),
)
raise BestVersionAlreadyInstalled
logger.debug(
'Using version %s (newest of versions: %s)',
best_candidate.version,
_format_versions(best_candidate_result.iter_applicable()),
)
return best_candidate
def _find_name_version_sep(fragment: str, canonical_name: str) -> int:
"""Find the separator's index based on the package's canonical name.
:param fragment: A <package>+<version> filename "fragment" (stem) or
egg fragment.
:param canonical_name: The package's canonical name.
This function is needed since the canonicalized name does not necessarily
have the same length as the egg info's name part. An example::
>>> fragment = 'foo__bar-1.0'
>>> canonical_name = 'foo-bar'
>>> _find_name_version_sep(fragment, canonical_name)
8
"""
# Project name and version must be separated by one single dash. Find all
# occurrences of dashes; if the string in front of it matches the canonical
# name, this is the one separating the name and version parts.
for i, c in enumerate(fragment):
if c != "-":
continue
if canonicalize_name(fragment[:i]) == canonical_name:
return i
raise ValueError(f"{fragment} does not match {canonical_name}")
def _extract_version_from_fragment(fragment: str, canonical_name: str) -> Optional[str]:
"""Parse the version string from a <package>+<version> filename
"fragment" (stem) or egg fragment.
:param fragment: The string to parse. E.g. foo-2.1
:param canonical_name: The canonicalized name of the package this
belongs to.
"""
try:
version_start = _find_name_version_sep(fragment, canonical_name) + 1
except ValueError:
return None
version = fragment[version_start:]
if not version:
return None
return version

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venv/Lib/site-packages/pip/_internal/index/sources.py Normal file
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@ -0,0 +1,224 @@
import logging
import mimetypes
import os
import pathlib
from typing import Callable, Iterable, Optional, Tuple
from pip._internal.models.candidate import InstallationCandidate
from pip._internal.models.link import Link
from pip._internal.utils.urls import path_to_url, url_to_path
from pip._internal.vcs import is_url
logger = logging.getLogger(__name__)
FoundCandidates = Iterable[InstallationCandidate]
FoundLinks = Iterable[Link]
CandidatesFromPage = Callable[[Link], Iterable[InstallationCandidate]]
PageValidator = Callable[[Link], bool]
class LinkSource:
@property
def link(self) -> Optional[Link]:
"""Returns the underlying link, if there's one."""
raise NotImplementedError()
def page_candidates(self) -> FoundCandidates:
"""Candidates found by parsing an archive listing HTML file."""
raise NotImplementedError()
def file_links(self) -> FoundLinks:
"""Links found by specifying archives directly."""
raise NotImplementedError()
def _is_html_file(file_url: str) -> bool:
return mimetypes.guess_type(file_url, strict=False)[0] == "text/html"
class _FlatDirectorySource(LinkSource):
"""Link source specified by ``--find-links=<path-to-dir>``.
This looks the content of the directory, and returns:
* ``page_candidates``: Links listed on each HTML file in the directory.
* ``file_candidates``: Archives in the directory.
"""
def __init__(
self,
candidates_from_page: CandidatesFromPage,
path: str,
) -> None:
self._candidates_from_page = candidates_from_page
self._path = pathlib.Path(os.path.realpath(path))
@property
def link(self) -> Optional[Link]:
return None
def page_candidates(self) -> FoundCandidates:
for path in self._path.iterdir():
url = path_to_url(str(path))
if not _is_html_file(url):
continue
yield from self._candidates_from_page(Link(url))
def file_links(self) -> FoundLinks:
for path in self._path.iterdir():
url = path_to_url(str(path))
if _is_html_file(url):
continue
yield Link(url)
class _LocalFileSource(LinkSource):
"""``--find-links=<path-or-url>`` or ``--[extra-]index-url=<path-or-url>``.
If a URL is supplied, it must be a ``file:`` URL. If a path is supplied to
the option, it is converted to a URL first. This returns:
* ``page_candidates``: Links listed on an HTML file.
* ``file_candidates``: The non-HTML file.
"""
def __init__(
self,
candidates_from_page: CandidatesFromPage,
link: Link,
) -> None:
self._candidates_from_page = candidates_from_page
self._link = link
@property
def link(self) -> Optional[Link]:
return self._link
def page_candidates(self) -> FoundCandidates:
if not _is_html_file(self._link.url):
return
yield from self._candidates_from_page(self._link)
def file_links(self) -> FoundLinks:
if _is_html_file(self._link.url):
return
yield self._link
class _RemoteFileSource(LinkSource):
"""``--find-links=<url>`` or ``--[extra-]index-url=<url>``.
This returns:
* ``page_candidates``: Links listed on an HTML file.
* ``file_candidates``: The non-HTML file.
"""
def __init__(
self,
candidates_from_page: CandidatesFromPage,
page_validator: PageValidator,
link: Link,
) -> None:
self._candidates_from_page = candidates_from_page
self._page_validator = page_validator
self._link = link
@property
def link(self) -> Optional[Link]:
return self._link
def page_candidates(self) -> FoundCandidates:
if not self._page_validator(self._link):
return
yield from self._candidates_from_page(self._link)
def file_links(self) -> FoundLinks:
yield self._link
class _IndexDirectorySource(LinkSource):
"""``--[extra-]index-url=<path-to-directory>``.
This is treated like a remote URL; ``candidates_from_page`` contains logic
for this by appending ``index.html`` to the link.
"""
def __init__(
self,
candidates_from_page: CandidatesFromPage,
link: Link,
) -> None:
self._candidates_from_page = candidates_from_page
self._link = link
@property
def link(self) -> Optional[Link]:
return self._link
def page_candidates(self) -> FoundCandidates:
yield from self._candidates_from_page(self._link)
def file_links(self) -> FoundLinks:
return ()
def build_source(
location: str,
*,
candidates_from_page: CandidatesFromPage,
page_validator: PageValidator,
expand_dir: bool,
cache_link_parsing: bool,
) -> Tuple[Optional[str], Optional[LinkSource]]:
path: Optional[str] = None
url: Optional[str] = None
if os.path.exists(location): # Is a local path.
url = path_to_url(location)
path = location
elif location.startswith("file:"): # A file: URL.
url = location
path = url_to_path(location)
elif is_url(location):
url = location
if url is None:
msg = (
"Location '%s' is ignored: "
"it is either a non-existing path or lacks a specific scheme."
)
logger.warning(msg, location)
return (None, None)
if path is None:
source: LinkSource = _RemoteFileSource(
candidates_from_page=candidates_from_page,
page_validator=page_validator,
link=Link(url, cache_link_parsing=cache_link_parsing),
)
return (url, source)
if os.path.isdir(path):
if expand_dir:
source = _FlatDirectorySource(
candidates_from_page=candidates_from_page,
path=path,
)
else:
source = _IndexDirectorySource(
candidates_from_page=candidates_from_page,
link=Link(url, cache_link_parsing=cache_link_parsing),
)
return (url, source)
elif os.path.isfile(path):
source = _LocalFileSource(
candidates_from_page=candidates_from_page,
link=Link(url, cache_link_parsing=cache_link_parsing),
)
return (url, source)
logger.warning(
"Location '%s' is ignored: it is neither a file nor a directory.",
location,
)
return (url, None)

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import functools
import logging
import os
import pathlib
import sys
import sysconfig
from typing import Any, Dict, Iterator, List, Optional, Tuple
from pip._internal.models.scheme import SCHEME_KEYS, Scheme
from pip._internal.utils.compat import WINDOWS
from pip._internal.utils.deprecation import deprecated
from pip._internal.utils.virtualenv import running_under_virtualenv
from . import _distutils, _sysconfig
from .base import (
USER_CACHE_DIR,
get_major_minor_version,
get_src_prefix,
is_osx_framework,
site_packages,
user_site,
)
__all__ = [
"USER_CACHE_DIR",
"get_bin_prefix",
"get_bin_user",
"get_major_minor_version",
"get_platlib",
"get_prefixed_libs",
"get_purelib",
"get_scheme",
"get_src_prefix",
"site_packages",
"user_site",
]
logger = logging.getLogger(__name__)
if os.environ.get("_PIP_LOCATIONS_NO_WARN_ON_MISMATCH"):
_MISMATCH_LEVEL = logging.DEBUG
else:
_MISMATCH_LEVEL = logging.WARNING
_PLATLIBDIR: str = getattr(sys, "platlibdir", "lib")
def _looks_like_bpo_44860() -> bool:
"""The resolution to bpo-44860 will change this incorrect platlib.
See <https://bugs.python.org/issue44860>.
"""
from distutils.command.install import INSTALL_SCHEMES # type: ignore
try:
unix_user_platlib = INSTALL_SCHEMES["unix_user"]["platlib"]
except KeyError:
return False
return unix_user_platlib == "$usersite"
def _looks_like_red_hat_patched_platlib_purelib(scheme: Dict[str, str]) -> bool:
platlib = scheme["platlib"]
if "/lib64/" not in platlib:
return False
unpatched = platlib.replace("/lib64/", "/lib/")
return unpatched.replace("$platbase/", "$base/") == scheme["purelib"]
@functools.lru_cache(maxsize=None)
def _looks_like_red_hat_lib() -> bool:
"""Red Hat patches platlib in unix_prefix and unix_home, but not purelib.
This is the only way I can see to tell a Red Hat-patched Python.
"""
from distutils.command.install import INSTALL_SCHEMES # type: ignore
return all(
k in INSTALL_SCHEMES
and _looks_like_red_hat_patched_platlib_purelib(INSTALL_SCHEMES[k])
for k in ("unix_prefix", "unix_home")
)
@functools.lru_cache(maxsize=None)
def _looks_like_debian_scheme() -> bool:
"""Debian adds two additional schemes."""
from distutils.command.install import INSTALL_SCHEMES # type: ignore
return "deb_system" in INSTALL_SCHEMES and "unix_local" in INSTALL_SCHEMES
@functools.lru_cache(maxsize=None)
def _looks_like_red_hat_scheme() -> bool:
"""Red Hat patches ``sys.prefix`` and ``sys.exec_prefix``.
Red Hat's ``00251-change-user-install-location.patch`` changes the install
command's ``prefix`` and ``exec_prefix`` to append ``"/local"``. This is
(fortunately?) done quite unconditionally, so we create a default command
object without any configuration to detect this.
"""
from distutils.command.install import install
from distutils.dist import Distribution
cmd: Any = install(Distribution())
cmd.finalize_options()
return (
cmd.exec_prefix == f"{os.path.normpath(sys.exec_prefix)}/local"
and cmd.prefix == f"{os.path.normpath(sys.prefix)}/local"
)
@functools.lru_cache(maxsize=None)
def _looks_like_msys2_mingw_scheme() -> bool:
"""MSYS2 patches distutils and sysconfig to use a UNIX-like scheme.
However, MSYS2 incorrectly patches sysconfig ``nt`` scheme. The fix is
likely going to be included in their 3.10 release, so we ignore the warning.
See msys2/MINGW-packages#9319.
MSYS2 MINGW's patch uses lowercase ``"lib"`` instead of the usual uppercase,
and is missing the final ``"site-packages"``.
"""
paths = sysconfig.get_paths("nt", expand=False)
return all(
"Lib" not in p and "lib" in p and not p.endswith("site-packages")
for p in (paths[key] for key in ("platlib", "purelib"))
)
def _fix_abiflags(parts: Tuple[str]) -> Iterator[str]:
ldversion = sysconfig.get_config_var("LDVERSION")
abiflags: str = getattr(sys, "abiflags", None)
# LDVERSION does not end with sys.abiflags. Just return the path unchanged.
if not ldversion or not abiflags or not ldversion.endswith(abiflags):
yield from parts
return
# Strip sys.abiflags from LDVERSION-based path components.
for part in parts:
if part.endswith(ldversion):
part = part[: (0 - len(abiflags))]
yield part
@functools.lru_cache(maxsize=None)
def _warn_mismatched(old: pathlib.Path, new: pathlib.Path, *, key: str) -> None:
issue_url = "https://github.com/pypa/pip/issues/10151"
message = (
"Value for %s does not match. Please report this to <%s>"
"\ndistutils: %s"
"\nsysconfig: %s"
)
logger.log(_MISMATCH_LEVEL, message, key, issue_url, old, new)
def _warn_if_mismatch(old: pathlib.Path, new: pathlib.Path, *, key: str) -> bool:
if old == new:
return False
_warn_mismatched(old, new, key=key)
return True
@functools.lru_cache(maxsize=None)
def _log_context(
*,
user: bool = False,
home: Optional[str] = None,
root: Optional[str] = None,
prefix: Optional[str] = None,
) -> None:
parts = [
"Additional context:",
"user = %r",
"home = %r",
"root = %r",
"prefix = %r",
]
logger.log(_MISMATCH_LEVEL, "\n".join(parts), user, home, root, prefix)
def get_scheme(
dist_name: str,
user: bool = False,
home: Optional[str] = None,
root: Optional[str] = None,
isolated: bool = False,
prefix: Optional[str] = None,
) -> Scheme:
old = _distutils.get_scheme(
dist_name,
user=user,
home=home,
root=root,
isolated=isolated,
prefix=prefix,
)
new = _sysconfig.get_scheme(
dist_name,
user=user,
home=home,
root=root,
isolated=isolated,
prefix=prefix,
)
warning_contexts = []
for k in SCHEME_KEYS:
old_v = pathlib.Path(getattr(old, k))
new_v = pathlib.Path(getattr(new, k))
if old_v == new_v:
continue
# distutils incorrectly put PyPy packages under ``site-packages/python``
# in the ``posix_home`` scheme, but PyPy devs said they expect the
# directory name to be ``pypy`` instead. So we treat this as a bug fix
# and not warn about it. See bpo-43307 and python/cpython#24628.
skip_pypy_special_case = (
sys.implementation.name == "pypy"
and home is not None
and k in ("platlib", "purelib")
and old_v.parent == new_v.parent
and old_v.name.startswith("python")
and new_v.name.startswith("pypy")
)
if skip_pypy_special_case:
continue
# sysconfig's ``osx_framework_user`` does not include ``pythonX.Y`` in
# the ``include`` value, but distutils's ``headers`` does. We'll let
# CPython decide whether this is a bug or feature. See bpo-43948.
skip_osx_framework_user_special_case = (
user
and is_osx_framework()
and k == "headers"
and old_v.parent.parent == new_v.parent
and old_v.parent.name.startswith("python")
)
if skip_osx_framework_user_special_case:
continue
# On Red Hat and derived Linux distributions, distutils is patched to
# use "lib64" instead of "lib" for platlib.
if k == "platlib" and _looks_like_red_hat_lib():
continue
# On Python 3.9+, sysconfig's posix_user scheme sets platlib against
# sys.platlibdir, but distutils's unix_user incorrectly coninutes
# using the same $usersite for both platlib and purelib. This creates a
# mismatch when sys.platlibdir is not "lib".
skip_bpo_44860 = (
user
and k == "platlib"
and not WINDOWS
and sys.version_info >= (3, 9)
and _PLATLIBDIR != "lib"
and _looks_like_bpo_44860()
)
if skip_bpo_44860:
continue
# Both Debian and Red Hat patch Python to place the system site under
# /usr/local instead of /usr. Debian also places lib in dist-packages
# instead of site-packages, but the /usr/local check should cover it.
skip_linux_system_special_case = (
not (user or home or prefix or running_under_virtualenv())
and old_v.parts[1:3] == ("usr", "local")
and len(new_v.parts) > 1
and new_v.parts[1] == "usr"
and (len(new_v.parts) < 3 or new_v.parts[2] != "local")
and (_looks_like_red_hat_scheme() or _looks_like_debian_scheme())
)
if skip_linux_system_special_case:
continue
# On Python 3.7 and earlier, sysconfig does not include sys.abiflags in
# the "pythonX.Y" part of the path, but distutils does.
skip_sysconfig_abiflag_bug = (
sys.version_info < (3, 8)
and not WINDOWS
and k in ("headers", "platlib", "purelib")
and tuple(_fix_abiflags(old_v.parts)) == new_v.parts
)
if skip_sysconfig_abiflag_bug:
continue
# MSYS2 MINGW's sysconfig patch does not include the "site-packages"
# part of the path. This is incorrect and will be fixed in MSYS.
skip_msys2_mingw_bug = (
WINDOWS and k in ("platlib", "purelib") and _looks_like_msys2_mingw_scheme()
)
if skip_msys2_mingw_bug:
continue
warning_contexts.append((old_v, new_v, f"scheme.{k}"))
if not warning_contexts:
return old
# Check if this path mismatch is caused by distutils config files. Those
# files will no longer work once we switch to sysconfig, so this raises a
# deprecation message for them.
default_old = _distutils.distutils_scheme(
dist_name,
user,
home,
root,
isolated,
prefix,
ignore_config_files=True,
)
if any(default_old[k] != getattr(old, k) for k in SCHEME_KEYS):
deprecated(
"Configuring installation scheme with distutils config files "
"is deprecated and will no longer work in the near future. If you "
"are using a Homebrew or Linuxbrew Python, please see discussion "
"at https://github.com/Homebrew/homebrew-core/issues/76621",
replacement=None,
gone_in=None,
)
return old
# Post warnings about this mismatch so user can report them back.
for old_v, new_v, key in warning_contexts:
_warn_mismatched(old_v, new_v, key=key)
_log_context(user=user, home=home, root=root, prefix=prefix)
return old
def get_bin_prefix() -> str:
old = _distutils.get_bin_prefix()
new = _sysconfig.get_bin_prefix()
if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="bin_prefix"):
_log_context()
return old
def get_bin_user() -> str:
return _sysconfig.get_scheme("", user=True).scripts
def _looks_like_deb_system_dist_packages(value: str) -> bool:
"""Check if the value is Debian's APT-controlled dist-packages.
Debian's ``distutils.sysconfig.get_python_lib()`` implementation returns the
default package path controlled by APT, but does not patch ``sysconfig`` to
do the same. This is similar to the bug worked around in ``get_scheme()``,
but here the default is ``deb_system`` instead of ``unix_local``. Ultimately
we can't do anything about this Debian bug, and this detection allows us to
skip the warning when needed.
"""
if not _looks_like_debian_scheme():
return False
if value == "/usr/lib/python3/dist-packages":
return True
return False
def get_purelib() -> str:
"""Return the default pure-Python lib location."""
old = _distutils.get_purelib()
new = _sysconfig.get_purelib()
if _looks_like_deb_system_dist_packages(old):
return old
if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="purelib"):
_log_context()
return old
def get_platlib() -> str:
"""Return the default platform-shared lib location."""
old = _distutils.get_platlib()
new = _sysconfig.get_platlib()
if _looks_like_deb_system_dist_packages(old):
return old
if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="platlib"):
_log_context()
return old
def get_prefixed_libs(prefix: str) -> List[str]:
"""Return the lib locations under ``prefix``."""
old_pure, old_plat = _distutils.get_prefixed_libs(prefix)
new_pure, new_plat = _sysconfig.get_prefixed_libs(prefix)
warned = [
_warn_if_mismatch(
pathlib.Path(old_pure),
pathlib.Path(new_pure),
key="prefixed-purelib",
),
_warn_if_mismatch(
pathlib.Path(old_plat),
pathlib.Path(new_plat),
key="prefixed-platlib",
),
]
if any(warned):
_log_context(prefix=prefix)
if old_pure == old_plat:
return [old_pure]
return [old_pure, old_plat]

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"""Locations where we look for configs, install stuff, etc"""
# The following comment should be removed at some point in the future.
# mypy: strict-optional=False
import logging
import os
import sys
from distutils.cmd import Command as DistutilsCommand
from distutils.command.install import SCHEME_KEYS
from distutils.command.install import install as distutils_install_command
from distutils.sysconfig import get_python_lib
from typing import Dict, List, Optional, Tuple, Union, cast
from pip._internal.models.scheme import Scheme
from pip._internal.utils.compat import WINDOWS
from pip._internal.utils.virtualenv import running_under_virtualenv
from .base import get_major_minor_version
logger = logging.getLogger(__name__)
def distutils_scheme(
dist_name: str,
user: bool = False,
home: str = None,
root: str = None,
isolated: bool = False,
prefix: str = None,
*,
ignore_config_files: bool = False,
) -> Dict[str, str]:
"""
Return a distutils install scheme
"""
from distutils.dist import Distribution
dist_args: Dict[str, Union[str, List[str]]] = {"name": dist_name}
if isolated:
dist_args["script_args"] = ["--no-user-cfg"]
d = Distribution(dist_args)
if not ignore_config_files:
try:
d.parse_config_files()
except UnicodeDecodeError:
# Typeshed does not include find_config_files() for some reason.
paths = d.find_config_files() # type: ignore
logger.warning(
"Ignore distutils configs in %s due to encoding errors.",
", ".join(os.path.basename(p) for p in paths),
)
obj: Optional[DistutilsCommand] = None
obj = d.get_command_obj("install", create=True)
assert obj is not None
i = cast(distutils_install_command, obj)
# NOTE: setting user or home has the side-effect of creating the home dir
# or user base for installations during finalize_options()
# ideally, we'd prefer a scheme class that has no side-effects.
assert not (user and prefix), f"user={user} prefix={prefix}"
assert not (home and prefix), f"home={home} prefix={prefix}"
i.user = user or i.user
if user or home:
i.prefix = ""
i.prefix = prefix or i.prefix
i.home = home or i.home
i.root = root or i.root
i.finalize_options()
scheme = {}
for key in SCHEME_KEYS:
scheme[key] = getattr(i, "install_" + key)
# install_lib specified in setup.cfg should install *everything*
# into there (i.e. it takes precedence over both purelib and
# platlib). Note, i.install_lib is *always* set after
# finalize_options(); we only want to override here if the user
# has explicitly requested it hence going back to the config
if "install_lib" in d.get_option_dict("install"):
scheme.update(dict(purelib=i.install_lib, platlib=i.install_lib))
if running_under_virtualenv():
if home:
prefix = home
elif user:
prefix = i.install_userbase # type: ignore
else:
prefix = i.prefix
scheme["headers"] = os.path.join(
prefix,
"include",
"site",
f"python{get_major_minor_version()}",
dist_name,
)
if root is not None:
path_no_drive = os.path.splitdrive(os.path.abspath(scheme["headers"]))[1]
scheme["headers"] = os.path.join(root, path_no_drive[1:])
return scheme
def get_scheme(
dist_name: str,
user: bool = False,
home: Optional[str] = None,
root: Optional[str] = None,
isolated: bool = False,
prefix: Optional[str] = None,
) -> Scheme:
"""
Get the "scheme" corresponding to the input parameters. The distutils
documentation provides the context for the available schemes:
https://docs.python.org/3/install/index.html#alternate-installation
:param dist_name: the name of the package to retrieve the scheme for, used
in the headers scheme path
:param user: indicates to use the "user" scheme
:param home: indicates to use the "home" scheme and provides the base
directory for the same
:param root: root under which other directories are re-based
:param isolated: equivalent to --no-user-cfg, i.e. do not consider
~/.pydistutils.cfg (posix) or ~/pydistutils.cfg (non-posix) for
scheme paths
:param prefix: indicates to use the "prefix" scheme and provides the
base directory for the same
"""
scheme = distutils_scheme(dist_name, user, home, root, isolated, prefix)
return Scheme(
platlib=scheme["platlib"],
purelib=scheme["purelib"],
headers=scheme["headers"],
scripts=scheme["scripts"],
data=scheme["data"],
)
def get_bin_prefix() -> str:
# XXX: In old virtualenv versions, sys.prefix can contain '..' components,
# so we need to call normpath to eliminate them.
prefix = os.path.normpath(sys.prefix)
if WINDOWS:
bin_py = os.path.join(prefix, "Scripts")
# buildout uses 'bin' on Windows too?
if not os.path.exists(bin_py):
bin_py = os.path.join(prefix, "bin")
return bin_py
# Forcing to use /usr/local/bin for standard macOS framework installs
# Also log to ~/Library/Logs/ for use with the Console.app log viewer
if sys.platform[:6] == "darwin" and prefix[:16] == "/System/Library/":
return "/usr/local/bin"
return os.path.join(prefix, "bin")
def get_purelib() -> str:
return get_python_lib(plat_specific=False)
def get_platlib() -> str:
return get_python_lib(plat_specific=True)
def get_prefixed_libs(prefix: str) -> Tuple[str, str]:
return (
get_python_lib(plat_specific=False, prefix=prefix),
get_python_lib(plat_specific=True, prefix=prefix),
)

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import distutils.util # FIXME: For change_root.
import logging
import os
import sys
import sysconfig
import typing
from pip._internal.exceptions import InvalidSchemeCombination, UserInstallationInvalid
from pip._internal.models.scheme import SCHEME_KEYS, Scheme
from pip._internal.utils.virtualenv import running_under_virtualenv
from .base import get_major_minor_version, is_osx_framework
logger = logging.getLogger(__name__)
# Notes on _infer_* functions.
# Unfortunately ``get_default_scheme()`` didn't exist before 3.10, so there's no
# way to ask things like "what is the '_prefix' scheme on this platform". These
# functions try to answer that with some heuristics while accounting for ad-hoc
# platforms not covered by CPython's default sysconfig implementation. If the
# ad-hoc implementation does not fully implement sysconfig, we'll fall back to
# a POSIX scheme.
_AVAILABLE_SCHEMES = set(sysconfig.get_scheme_names())
_PREFERRED_SCHEME_API = getattr(sysconfig, "get_preferred_scheme", None)
def _should_use_osx_framework_prefix() -> bool:
"""Check for Apple's ``osx_framework_library`` scheme.
Python distributed by Apple's Command Line Tools has this special scheme
that's used when:
* This is a framework build.
* We are installing into the system prefix.
This does not account for ``pip install --prefix`` (also means we're not
installing to the system prefix), which should use ``posix_prefix``, but
logic here means ``_infer_prefix()`` outputs ``osx_framework_library``. But
since ``prefix`` is not available for ``sysconfig.get_default_scheme()``,
which is the stdlib replacement for ``_infer_prefix()``, presumably Apple
wouldn't be able to magically switch between ``osx_framework_library`` and
``posix_prefix``. ``_infer_prefix()`` returning ``osx_framework_library``
means its behavior is consistent whether we use the stdlib implementation
or our own, and we deal with this special case in ``get_scheme()`` instead.
"""
return (
"osx_framework_library" in _AVAILABLE_SCHEMES
and not running_under_virtualenv()
and is_osx_framework()
)
def _infer_prefix() -> str:
"""Try to find a prefix scheme for the current platform.
This tries:
* A special ``osx_framework_library`` for Python distributed by Apple's
Command Line Tools, when not running in a virtual environment.
* Implementation + OS, used by PyPy on Windows (``pypy_nt``).
* Implementation without OS, used by PyPy on POSIX (``pypy``).
* OS + "prefix", used by CPython on POSIX (``posix_prefix``).
* Just the OS name, used by CPython on Windows (``nt``).
If none of the above works, fall back to ``posix_prefix``.
"""
if _PREFERRED_SCHEME_API:
return _PREFERRED_SCHEME_API("prefix")
if _should_use_osx_framework_prefix():
return "osx_framework_library"
implementation_suffixed = f"{sys.implementation.name}_{os.name}"
if implementation_suffixed in _AVAILABLE_SCHEMES:
return implementation_suffixed
if sys.implementation.name in _AVAILABLE_SCHEMES:
return sys.implementation.name
suffixed = f"{os.name}_prefix"
if suffixed in _AVAILABLE_SCHEMES:
return suffixed
if os.name in _AVAILABLE_SCHEMES: # On Windows, prefx is just called "nt".
return os.name
return "posix_prefix"
def _infer_user() -> str:
"""Try to find a user scheme for the current platform."""
if _PREFERRED_SCHEME_API:
return _PREFERRED_SCHEME_API("user")
if is_osx_framework() and not running_under_virtualenv():
suffixed = "osx_framework_user"
else:
suffixed = f"{os.name}_user"
if suffixed in _AVAILABLE_SCHEMES:
return suffixed
if "posix_user" not in _AVAILABLE_SCHEMES: # User scheme unavailable.
raise UserInstallationInvalid()
return "posix_user"
def _infer_home() -> str:
"""Try to find a home for the current platform."""
if _PREFERRED_SCHEME_API:
return _PREFERRED_SCHEME_API("home")
suffixed = f"{os.name}_home"
if suffixed in _AVAILABLE_SCHEMES:
return suffixed
return "posix_home"
# Update these keys if the user sets a custom home.
_HOME_KEYS = [
"installed_base",
"base",
"installed_platbase",
"platbase",
"prefix",
"exec_prefix",
]
if sysconfig.get_config_var("userbase") is not None:
_HOME_KEYS.append("userbase")
def get_scheme(
dist_name: str,
user: bool = False,
home: typing.Optional[str] = None,
root: typing.Optional[str] = None,
isolated: bool = False,
prefix: typing.Optional[str] = None,
) -> Scheme:
"""
Get the "scheme" corresponding to the input parameters.
:param dist_name: the name of the package to retrieve the scheme for, used
in the headers scheme path
:param user: indicates to use the "user" scheme
:param home: indicates to use the "home" scheme
:param root: root under which other directories are re-based
:param isolated: ignored, but kept for distutils compatibility (where
this controls whether the user-site pydistutils.cfg is honored)
:param prefix: indicates to use the "prefix" scheme and provides the
base directory for the same
"""
if user and prefix:
raise InvalidSchemeCombination("--user", "--prefix")
if home and prefix:
raise InvalidSchemeCombination("--home", "--prefix")
if home is not None:
scheme_name = _infer_home()
elif user:
scheme_name = _infer_user()
else:
scheme_name = _infer_prefix()
# Special case: When installing into a custom prefix, use posix_prefix
# instead of osx_framework_library. See _should_use_osx_framework_prefix()
# docstring for details.
if prefix is not None and scheme_name == "osx_framework_library":
scheme_name = "posix_prefix"
if home is not None:
variables = {k: home for k in _HOME_KEYS}
elif prefix is not None:
variables = {k: prefix for k in _HOME_KEYS}
else:
variables = {}
paths = sysconfig.get_paths(scheme=scheme_name, vars=variables)
# Logic here is very arbitrary, we're doing it for compatibility, don't ask.
# 1. Pip historically uses a special header path in virtual environments.
# 2. If the distribution name is not known, distutils uses 'UNKNOWN'. We
# only do the same when not running in a virtual environment because
# pip's historical header path logic (see point 1) did not do this.
if running_under_virtualenv():
if user:
base = variables.get("userbase", sys.prefix)
else:
base = variables.get("base", sys.prefix)
python_xy = f"python{get_major_minor_version()}"
paths["include"] = os.path.join(base, "include", "site", python_xy)
elif not dist_name:
dist_name = "UNKNOWN"
scheme = Scheme(
platlib=paths["platlib"],
purelib=paths["purelib"],
headers=os.path.join(paths["include"], dist_name),
scripts=paths["scripts"],
data=paths["data"],
)
if root is not None:
for key in SCHEME_KEYS:
value = distutils.util.change_root(root, getattr(scheme, key))
setattr(scheme, key, value)
return scheme
def get_bin_prefix() -> str:
# Forcing to use /usr/local/bin for standard macOS framework installs.
if sys.platform[:6] == "darwin" and sys.prefix[:16] == "/System/Library/":
return "/usr/local/bin"
return sysconfig.get_paths()["scripts"]
def get_purelib() -> str:
return sysconfig.get_paths()["purelib"]
def get_platlib() -> str:
return sysconfig.get_paths()["platlib"]
def get_prefixed_libs(prefix: str) -> typing.Tuple[str, str]:
paths = sysconfig.get_paths(vars={"base": prefix, "platbase": prefix})
return (paths["purelib"], paths["platlib"])

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import functools
import os
import site
import sys
import sysconfig
import typing
from pip._internal.utils import appdirs
from pip._internal.utils.virtualenv import running_under_virtualenv
# Application Directories
USER_CACHE_DIR = appdirs.user_cache_dir("pip")
# FIXME doesn't account for venv linked to global site-packages
site_packages: typing.Optional[str] = sysconfig.get_path("purelib")
def get_major_minor_version() -> str:
"""
Return the major-minor version of the current Python as a string, e.g.
"3.7" or "3.10".
"""
return "{}.{}".format(*sys.version_info)
def get_src_prefix() -> str:
if running_under_virtualenv():
src_prefix = os.path.join(sys.prefix, "src")
else:
# FIXME: keep src in cwd for now (it is not a temporary folder)
try:
src_prefix = os.path.join(os.getcwd(), "src")
except OSError:
# In case the current working directory has been renamed or deleted
sys.exit("The folder you are executing pip from can no longer be found.")
# under macOS + virtualenv sys.prefix is not properly resolved
# it is something like /path/to/python/bin/..
return os.path.abspath(src_prefix)
try:
# Use getusersitepackages if this is present, as it ensures that the
# value is initialised properly.
user_site: typing.Optional[str] = site.getusersitepackages()
except AttributeError:
user_site = site.USER_SITE
@functools.lru_cache(maxsize=None)
def is_osx_framework() -> bool:
return bool(sysconfig.get_config_var("PYTHONFRAMEWORK"))

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from typing import List, Optional
def main(args=None):
# type: (Optional[List[str]]) -> int
"""This is preserved for old console scripts that may still be referencing
it.
For additional details, see https://github.com/pypa/pip/issues/7498.
"""
from pip._internal.utils.entrypoints import _wrapper
return _wrapper(args)

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from typing import List, Optional
from .base import BaseDistribution, BaseEnvironment
__all__ = [
"BaseDistribution",
"BaseEnvironment",
"get_default_environment",
"get_environment",
"get_wheel_distribution",
]
def get_default_environment() -> BaseEnvironment:
"""Get the default representation for the current environment.
This returns an Environment instance from the chosen backend. The default
Environment instance should be built from ``sys.path`` and may use caching
to share instance state accorss calls.
"""
from .pkg_resources import Environment
return Environment.default()
def get_environment(paths: Optional[List[str]]) -> BaseEnvironment:
"""Get a representation of the environment specified by ``paths``.
This returns an Environment instance from the chosen backend based on the
given import paths. The backend must build a fresh instance representing
the state of installed distributions when this function is called.
"""
from .pkg_resources import Environment
return Environment.from_paths(paths)
def get_wheel_distribution(wheel_path: str, canonical_name: str) -> BaseDistribution:
"""Get the representation of the specified wheel's distribution metadata.
This returns a Distribution instance from the chosen backend based on
the given wheel's ``.dist-info`` directory.
:param canonical_name: Normalized project name of the given wheel.
"""
from .pkg_resources import Distribution
return Distribution.from_wheel(wheel_path, canonical_name)

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import email.message
import json
import logging
import re
from typing import (
TYPE_CHECKING,
Collection,
Container,
Iterable,
Iterator,
List,
Optional,
Union,
)
from pip._vendor.packaging.requirements import Requirement
from pip._vendor.packaging.version import LegacyVersion, Version
from pip._internal.models.direct_url import (
DIRECT_URL_METADATA_NAME,
DirectUrl,
DirectUrlValidationError,
)
from pip._internal.utils.misc import stdlib_pkgs # TODO: Move definition here.
if TYPE_CHECKING:
from typing import Protocol
from pip._vendor.packaging.utils import NormalizedName
else:
Protocol = object
DistributionVersion = Union[LegacyVersion, Version]
logger = logging.getLogger(__name__)
class BaseEntryPoint(Protocol):
@property
def name(self) -> str:
raise NotImplementedError()
@property
def value(self) -> str:
raise NotImplementedError()
@property
def group(self) -> str:
raise NotImplementedError()
class BaseDistribution(Protocol):
@property
def location(self) -> Optional[str]:
"""Where the distribution is loaded from.
A string value is not necessarily a filesystem path, since distributions
can be loaded from other sources, e.g. arbitrary zip archives. ``None``
means the distribution is created in-memory.
Do not canonicalize this value with e.g. ``pathlib.Path.resolve()``. If
this is a symbolic link, we want to preserve the relative path between
it and files in the distribution.
"""
raise NotImplementedError()
@property
def info_directory(self) -> Optional[str]:
"""Location of the .[egg|dist]-info directory.
Similarly to ``location``, a string value is not necessarily a
filesystem path. ``None`` means the distribution is created in-memory.
For a modern .dist-info installation on disk, this should be something
like ``{location}/{raw_name}-{version}.dist-info``.
Do not canonicalize this value with e.g. ``pathlib.Path.resolve()``. If
this is a symbolic link, we want to preserve the relative path between
it and other files in the distribution.
"""
raise NotImplementedError()
@property
def canonical_name(self) -> "NormalizedName":
raise NotImplementedError()
@property
def version(self) -> DistributionVersion:
raise NotImplementedError()
@property
def direct_url(self) -> Optional[DirectUrl]:
"""Obtain a DirectUrl from this distribution.
Returns None if the distribution has no `direct_url.json` metadata,
or if `direct_url.json` is invalid.
"""
try:
content = self.read_text(DIRECT_URL_METADATA_NAME)
except FileNotFoundError:
return None
try:
return DirectUrl.from_json(content)
except (
UnicodeDecodeError,
json.JSONDecodeError,
DirectUrlValidationError,
) as e:
logger.warning(
"Error parsing %s for %s: %s",
DIRECT_URL_METADATA_NAME,
self.canonical_name,
e,
)
return None
@property
def installer(self) -> str:
raise NotImplementedError()
@property
def editable(self) -> bool:
raise NotImplementedError()
@property
def local(self) -> bool:
raise NotImplementedError()
@property
def in_usersite(self) -> bool:
raise NotImplementedError()
@property
def in_site_packages(self) -> bool:
raise NotImplementedError()
def read_text(self, name: str) -> str:
"""Read a file in the .dist-info (or .egg-info) directory.
Should raise ``FileNotFoundError`` if ``name`` does not exist in the
metadata directory.
"""
raise NotImplementedError()
def iter_entry_points(self) -> Iterable[BaseEntryPoint]:
raise NotImplementedError()
@property
def metadata(self) -> email.message.Message:
"""Metadata of distribution parsed from e.g. METADATA or PKG-INFO."""
raise NotImplementedError()
@property
def metadata_version(self) -> Optional[str]:
"""Value of "Metadata-Version:" in distribution metadata, if available."""
return self.metadata.get("Metadata-Version")
@property
def raw_name(self) -> str:
"""Value of "Name:" in distribution metadata."""
# The metadata should NEVER be missing the Name: key, but if it somehow
# does not, fall back to the known canonical name.
return self.metadata.get("Name", self.canonical_name)
def iter_dependencies(self, extras: Collection[str] = ()) -> Iterable[Requirement]:
raise NotImplementedError()
class BaseEnvironment:
"""An environment containing distributions to introspect."""
@classmethod
def default(cls) -> "BaseEnvironment":
raise NotImplementedError()
@classmethod
def from_paths(cls, paths: Optional[List[str]]) -> "BaseEnvironment":
raise NotImplementedError()
def get_distribution(self, name: str) -> Optional["BaseDistribution"]:
"""Given a requirement name, return the installed distributions."""
raise NotImplementedError()
def _iter_distributions(self) -> Iterator["BaseDistribution"]:
"""Iterate through installed distributions.
This function should be implemented by subclass, but never called
directly. Use the public ``iter_distribution()`` instead, which
implements additional logic to make sure the distributions are valid.
"""
raise NotImplementedError()
def iter_distributions(self) -> Iterator["BaseDistribution"]:
"""Iterate through installed distributions."""
for dist in self._iter_distributions():
# Make sure the distribution actually comes from a valid Python
# packaging distribution. Pip's AdjacentTempDirectory leaves folders
# e.g. ``~atplotlib.dist-info`` if cleanup was interrupted. The
# valid project name pattern is taken from PEP 508.
project_name_valid = re.match(
r"^([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])$",
dist.canonical_name,
flags=re.IGNORECASE,
)
if not project_name_valid:
logger.warning(
"Ignoring invalid distribution %s (%s)",
dist.canonical_name,
dist.location,
)
continue
yield dist
def iter_installed_distributions(
self,
local_only: bool = True,
skip: Container[str] = stdlib_pkgs,
include_editables: bool = True,
editables_only: bool = False,
user_only: bool = False,
) -> Iterator[BaseDistribution]:
"""Return a list of installed distributions.
:param local_only: If True (default), only return installations
local to the current virtualenv, if in a virtualenv.
:param skip: An iterable of canonicalized project names to ignore;
defaults to ``stdlib_pkgs``.
:param include_editables: If False, don't report editables.
:param editables_only: If True, only report editables.
:param user_only: If True, only report installations in the user
site directory.
"""
it = self.iter_distributions()
if local_only:
it = (d for d in it if d.local)
if not include_editables:
it = (d for d in it if not d.editable)
if editables_only:
it = (d for d in it if d.editable)
if user_only:
it = (d for d in it if d.in_usersite)
return (d for d in it if d.canonical_name not in skip)

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import email.message
import logging
import zipfile
from typing import (
TYPE_CHECKING,
Collection,
Iterable,
Iterator,
List,
NamedTuple,
Optional,
)
from pip._vendor import pkg_resources
from pip._vendor.packaging.requirements import Requirement
from pip._vendor.packaging.utils import canonicalize_name
from pip._vendor.packaging.version import parse as parse_version
from pip._internal.utils import misc # TODO: Move definition here.
from pip._internal.utils.packaging import get_installer, get_metadata
from pip._internal.utils.wheel import pkg_resources_distribution_for_wheel
from .base import BaseDistribution, BaseEntryPoint, BaseEnvironment, DistributionVersion
if TYPE_CHECKING:
from pip._vendor.packaging.utils import NormalizedName
logger = logging.getLogger(__name__)
class EntryPoint(NamedTuple):
name: str
value: str
group: str
class Distribution(BaseDistribution):
def __init__(self, dist: pkg_resources.Distribution) -> None:
self._dist = dist
@classmethod
def from_wheel(cls, path: str, name: str) -> "Distribution":
with zipfile.ZipFile(path, allowZip64=True) as zf:
dist = pkg_resources_distribution_for_wheel(zf, name, path)
return cls(dist)
@property
def location(self) -> Optional[str]:
return self._dist.location
@property
def info_directory(self) -> Optional[str]:
return self._dist.egg_info
@property
def canonical_name(self) -> "NormalizedName":
return canonicalize_name(self._dist.project_name)
@property
def version(self) -> DistributionVersion:
return parse_version(self._dist.version)
@property
def installer(self) -> str:
return get_installer(self._dist)
@property
def editable(self) -> bool:
return misc.dist_is_editable(self._dist)
@property
def local(self) -> bool:
return misc.dist_is_local(self._dist)
@property
def in_usersite(self) -> bool:
return misc.dist_in_usersite(self._dist)
@property
def in_site_packages(self) -> bool:
return misc.dist_in_site_packages(self._dist)
def read_text(self, name: str) -> str:
if not self._dist.has_metadata(name):
raise FileNotFoundError(name)
return self._dist.get_metadata(name)
def iter_entry_points(self) -> Iterable[BaseEntryPoint]:
for group, entries in self._dist.get_entry_map().items():
for name, entry_point in entries.items():
name, _, value = str(entry_point).partition("=")
yield EntryPoint(name=name.strip(), value=value.strip(), group=group)
@property
def metadata(self) -> email.message.Message:
return get_metadata(self._dist)
def iter_dependencies(self, extras: Collection[str] = ()) -> Iterable[Requirement]:
if extras: # pkg_resources raises on invalid extras, so we sanitize.
extras = frozenset(extras).intersection(self._dist.extras)
return self._dist.requires(extras)
class Environment(BaseEnvironment):
def __init__(self, ws: pkg_resources.WorkingSet) -> None:
self._ws = ws
@classmethod
def default(cls) -> BaseEnvironment:
return cls(pkg_resources.working_set)
@classmethod
def from_paths(cls, paths: Optional[List[str]]) -> BaseEnvironment:
return cls(pkg_resources.WorkingSet(paths))
def _search_distribution(self, name: str) -> Optional[BaseDistribution]:
"""Find a distribution matching the ``name`` in the environment.
This searches from *all* distributions available in the environment, to
match the behavior of ``pkg_resources.get_distribution()``.
"""
canonical_name = canonicalize_name(name)
for dist in self.iter_distributions():
if dist.canonical_name == canonical_name:
return dist
return None
def get_distribution(self, name: str) -> Optional[BaseDistribution]:
# Search the distribution by looking through the working set.
dist = self._search_distribution(name)
if dist:
return dist
# If distribution could not be found, call working_set.require to
# update the working set, and try to find the distribution again.
# This might happen for e.g. when you install a package twice, once
# using setup.py develop and again using setup.py install. Now when
# running pip uninstall twice, the package gets removed from the
# working set in the first uninstall, so we have to populate the
# working set again so that pip knows about it and the packages gets
# picked up and is successfully uninstalled the second time too.
try:
# We didn't pass in any version specifiers, so this can never
# raise pkg_resources.VersionConflict.
self._ws.require(name)
except pkg_resources.DistributionNotFound:
return None
return self._search_distribution(name)
def _iter_distributions(self) -> Iterator[BaseDistribution]:
for dist in self._ws:
yield Distribution(dist)

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"""A package that contains models that represent entities.
"""

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venv/Lib/site-packages/pip/_internal/models/candidate.py Normal file
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from pip._vendor.packaging.version import parse as parse_version
from pip._internal.models.link import Link
from pip._internal.utils.models import KeyBasedCompareMixin
class InstallationCandidate(KeyBasedCompareMixin):
"""Represents a potential "candidate" for installation.
"""
__slots__ = ["name", "version", "link"]
def __init__(self, name: str, version: str, link: Link) -> None:
self.name = name
self.version = parse_version(version)
self.link = link
super().__init__(
key=(self.name, self.version, self.link),
defining_class=InstallationCandidate
)
def __repr__(self) -> str:
return "<InstallationCandidate({!r}, {!r}, {!r})>".format(
self.name, self.version, self.link,
)
def __str__(self) -> str:
return '{!r} candidate (version {} at {})'.format(
self.name, self.version, self.link,
)

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venv/Lib/site-packages/pip/_internal/models/direct_url.py Normal file
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""" PEP 610 """
import json
import re
import urllib.parse
from typing import Any, Dict, Iterable, Optional, Type, TypeVar, Union
__all__ = [
"DirectUrl",
"DirectUrlValidationError",
"DirInfo",
"ArchiveInfo",
"VcsInfo",
]
T = TypeVar("T")
DIRECT_URL_METADATA_NAME = "direct_url.json"
ENV_VAR_RE = re.compile(r"^\$\{[A-Za-z0-9-_]+\}(:\$\{[A-Za-z0-9-_]+\})?$")
class DirectUrlValidationError(Exception):
pass
def _get(
d: Dict[str, Any], expected_type: Type[T], key: str, default: Optional[T] = None
) -> Optional[T]:
"""Get value from dictionary and verify expected type."""
if key not in d:
return default
value = d[key]
if not isinstance(value, expected_type):
raise DirectUrlValidationError(
"{!r} has unexpected type for {} (expected {})".format(
value, key, expected_type
)
)
return value
def _get_required(
d: Dict[str, Any], expected_type: Type[T], key: str, default: Optional[T] = None
) -> T:
value = _get(d, expected_type, key, default)
if value is None:
raise DirectUrlValidationError(f"{key} must have a value")
return value
def _exactly_one_of(infos: Iterable[Optional["InfoType"]]) -> "InfoType":
infos = [info for info in infos if info is not None]
if not infos:
raise DirectUrlValidationError(
"missing one of archive_info, dir_info, vcs_info"
)
if len(infos) > 1:
raise DirectUrlValidationError(
"more than one of archive_info, dir_info, vcs_info"
)
assert infos[0] is not None
return infos[0]
def _filter_none(**kwargs: Any) -> Dict[str, Any]:
"""Make dict excluding None values."""
return {k: v for k, v in kwargs.items() if v is not None}
class VcsInfo:
name = "vcs_info"
def __init__(
self,
vcs: str,
commit_id: str,
requested_revision: Optional[str] = None,
resolved_revision: Optional[str] = None,
resolved_revision_type: Optional[str] = None,
) -> None:
self.vcs = vcs
self.requested_revision = requested_revision
self.commit_id = commit_id
self.resolved_revision = resolved_revision
self.resolved_revision_type = resolved_revision_type
@classmethod
def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["VcsInfo"]:
if d is None:
return None
return cls(
vcs=_get_required(d, str, "vcs"),
commit_id=_get_required(d, str, "commit_id"),
requested_revision=_get(d, str, "requested_revision"),
resolved_revision=_get(d, str, "resolved_revision"),
resolved_revision_type=_get(d, str, "resolved_revision_type"),
)
def _to_dict(self) -> Dict[str, Any]:
return _filter_none(
vcs=self.vcs,
requested_revision=self.requested_revision,
commit_id=self.commit_id,
resolved_revision=self.resolved_revision,
resolved_revision_type=self.resolved_revision_type,
)
class ArchiveInfo:
name = "archive_info"
def __init__(
self,
hash: Optional[str] = None,
) -> None:
self.hash = hash
@classmethod
def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["ArchiveInfo"]:
if d is None:
return None
return cls(hash=_get(d, str, "hash"))
def _to_dict(self) -> Dict[str, Any]:
return _filter_none(hash=self.hash)
class DirInfo:
name = "dir_info"
def __init__(
self,
editable: bool = False,
) -> None:
self.editable = editable
@classmethod
def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["DirInfo"]:
if d is None:
return None
return cls(
editable=_get_required(d, bool, "editable", default=False)
)
def _to_dict(self) -> Dict[str, Any]:
return _filter_none(editable=self.editable or None)
InfoType = Union[ArchiveInfo, DirInfo, VcsInfo]
class DirectUrl:
def __init__(
self,
url: str,
info: InfoType,
subdirectory: Optional[str] = None,
) -> None:
self.url = url
self.info = info
self.subdirectory = subdirectory
def _remove_auth_from_netloc(self, netloc: str) -> str:
if "@" not in netloc:
return netloc
user_pass, netloc_no_user_pass = netloc.split("@", 1)
if (
isinstance(self.info, VcsInfo) and
self.info.vcs == "git" and
user_pass == "git"
):
return netloc
if ENV_VAR_RE.match(user_pass):
return netloc
return netloc_no_user_pass
@property
def redacted_url(self) -> str:
"""url with user:password part removed unless it is formed with
environment variables as specified in PEP 610, or it is ``git``
in the case of a git URL.
"""
purl = urllib.parse.urlsplit(self.url)
netloc = self._remove_auth_from_netloc(purl.netloc)
surl = urllib.parse.urlunsplit(
(purl.scheme, netloc, purl.path, purl.query, purl.fragment)
)
return surl
def validate(self) -> None:
self.from_dict(self.to_dict())
@classmethod
def from_dict(cls, d: Dict[str, Any]) -> "DirectUrl":
return DirectUrl(
url=_get_required(d, str, "url"),
subdirectory=_get(d, str, "subdirectory"),
info=_exactly_one_of(
[
ArchiveInfo._from_dict(_get(d, dict, "archive_info")),
DirInfo._from_dict(_get(d, dict, "dir_info")),
VcsInfo._from_dict(_get(d, dict, "vcs_info")),
]
),
)
def to_dict(self) -> Dict[str, Any]:
res = _filter_none(
url=self.redacted_url,
subdirectory=self.subdirectory,
)
res[self.info.name] = self.info._to_dict()
return res
@classmethod
def from_json(cls, s: str) -> "DirectUrl":
return cls.from_dict(json.loads(s))
def to_json(self) -> str:
return json.dumps(self.to_dict(), sort_keys=True)

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from typing import FrozenSet, Optional, Set
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.exceptions import CommandError
class FormatControl:
"""Helper for managing formats from which a package can be installed.
"""
__slots__ = ["no_binary", "only_binary"]
def __init__(
self,
no_binary: Optional[Set[str]] = None,
only_binary: Optional[Set[str]] = None
) -> None:
if no_binary is None:
no_binary = set()
if only_binary is None:
only_binary = set()
self.no_binary = no_binary
self.only_binary = only_binary
def __eq__(self, other: object) -> bool:
if not isinstance(other, self.__class__):
return NotImplemented
if self.__slots__ != other.__slots__:
return False
return all(
getattr(self, k) == getattr(other, k)
for k in self.__slots__
)
def __repr__(self) -> str:
return "{}({}, {})".format(
self.__class__.__name__,
self.no_binary,
self.only_binary
)
@staticmethod
def handle_mutual_excludes(value: str, target: Set[str], other: Set[str]) -> None:
if value.startswith('-'):
raise CommandError(
"--no-binary / --only-binary option requires 1 argument."
)
new = value.split(',')
while ':all:' in new:
other.clear()
target.clear()
target.add(':all:')
del new[:new.index(':all:') + 1]
# Without a none, we want to discard everything as :all: covers it
if ':none:' not in new:
return
for name in new:
if name == ':none:':
target.clear()
continue
name = canonicalize_name(name)
other.discard(name)
target.add(name)
def get_allowed_formats(self, canonical_name: str) -> FrozenSet[str]:
result = {"binary", "source"}
if canonical_name in self.only_binary:
result.discard('source')
elif canonical_name in self.no_binary:
result.discard('binary')
elif ':all:' in self.only_binary:
result.discard('source')
elif ':all:' in self.no_binary:
result.discard('binary')
return frozenset(result)
def disallow_binaries(self) -> None:
self.handle_mutual_excludes(
':all:', self.no_binary, self.only_binary,
)

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import urllib.parse
class PackageIndex:
"""Represents a Package Index and provides easier access to endpoints
"""
__slots__ = ['url', 'netloc', 'simple_url', 'pypi_url',
'file_storage_domain']
def __init__(self, url: str, file_storage_domain: str) -> None:
super().__init__()
self.url = url
self.netloc = urllib.parse.urlsplit(url).netloc
self.simple_url = self._url_for_path('simple')
self.pypi_url = self._url_for_path('pypi')
# This is part of a temporary hack used to block installs of PyPI
# packages which depend on external urls only necessary until PyPI can
# block such packages themselves
self.file_storage_domain = file_storage_domain
def _url_for_path(self, path: str) -> str:
return urllib.parse.urljoin(self.url, path)
PyPI = PackageIndex(
'https://pypi.org/', file_storage_domain='files.pythonhosted.org'
)
TestPyPI = PackageIndex(
'https://test.pypi.org/', file_storage_domain='test-files.pythonhosted.org'
)

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import functools
import logging
import os
import posixpath
import re
import urllib.parse
from typing import TYPE_CHECKING, Dict, List, NamedTuple, Optional, Tuple, Union
from pip._internal.utils.filetypes import WHEEL_EXTENSION
from pip._internal.utils.hashes import Hashes
from pip._internal.utils.misc import (
redact_auth_from_url,
split_auth_from_netloc,
splitext,
)
from pip._internal.utils.models import KeyBasedCompareMixin
from pip._internal.utils.urls import path_to_url, url_to_path
if TYPE_CHECKING:
from pip._internal.index.collector import HTMLPage
logger = logging.getLogger(__name__)
_SUPPORTED_HASHES = ("sha1", "sha224", "sha384", "sha256", "sha512", "md5")
class Link(KeyBasedCompareMixin):
"""Represents a parsed link from a Package Index's simple URL
"""
__slots__ = [
"_parsed_url",
"_url",
"comes_from",
"requires_python",
"yanked_reason",
"cache_link_parsing",
]
def __init__(
self,
url: str,
comes_from: Optional[Union[str, "HTMLPage"]] = None,
requires_python: Optional[str] = None,
yanked_reason: Optional[str] = None,
cache_link_parsing: bool = True,
) -> None:
"""
:param url: url of the resource pointed to (href of the link)
:param comes_from: instance of HTMLPage where the link was found,
or string.
:param requires_python: String containing the `Requires-Python`
metadata field, specified in PEP 345. This may be specified by
a data-requires-python attribute in the HTML link tag, as
described in PEP 503.
:param yanked_reason: the reason the file has been yanked, if the
file has been yanked, or None if the file hasn't been yanked.
This is the value of the "data-yanked" attribute, if present, in
a simple repository HTML link. If the file has been yanked but
no reason was provided, this should be the empty string. See
PEP 592 for more information and the specification.
:param cache_link_parsing: A flag that is used elsewhere to determine
whether resources retrieved from this link
should be cached. PyPI index urls should
generally have this set to False, for
example.
"""
# url can be a UNC windows share
if url.startswith('\\\\'):
url = path_to_url(url)
self._parsed_url = urllib.parse.urlsplit(url)
# Store the url as a private attribute to prevent accidentally
# trying to set a new value.
self._url = url
self.comes_from = comes_from
self.requires_python = requires_python if requires_python else None
self.yanked_reason = yanked_reason
super().__init__(key=url, defining_class=Link)
self.cache_link_parsing = cache_link_parsing
def __str__(self) -> str:
if self.requires_python:
rp = f' (requires-python:{self.requires_python})'
else:
rp = ''
if self.comes_from:
return '{} (from {}){}'.format(
redact_auth_from_url(self._url), self.comes_from, rp)
else:
return redact_auth_from_url(str(self._url))
def __repr__(self) -> str:
return f'<Link {self}>'
@property
def url(self) -> str:
return self._url
@property
def filename(self) -> str:
path = self.path.rstrip('/')
name = posixpath.basename(path)
if not name:
# Make sure we don't leak auth information if the netloc
# includes a username and password.
netloc, user_pass = split_auth_from_netloc(self.netloc)
return netloc
name = urllib.parse.unquote(name)
assert name, f'URL {self._url!r} produced no filename'
return name
@property
def file_path(self) -> str:
return url_to_path(self.url)
@property
def scheme(self) -> str:
return self._parsed_url.scheme
@property
def netloc(self) -> str:
"""
This can contain auth information.
"""
return self._parsed_url.netloc
@property
def path(self) -> str:
return urllib.parse.unquote(self._parsed_url.path)
def splitext(self) -> Tuple[str, str]:
return splitext(posixpath.basename(self.path.rstrip('/')))
@property
def ext(self) -> str:
return self.splitext()[1]
@property
def url_without_fragment(self) -> str:
scheme, netloc, path, query, fragment = self._parsed_url
return urllib.parse.urlunsplit((scheme, netloc, path, query, ''))
_egg_fragment_re = re.compile(r'[#&]egg=([^&]*)')
@property
def egg_fragment(self) -> Optional[str]:
match = self._egg_fragment_re.search(self._url)
if not match:
return None
return match.group(1)
_subdirectory_fragment_re = re.compile(r'[#&]subdirectory=([^&]*)')
@property
def subdirectory_fragment(self) -> Optional[str]:
match = self._subdirectory_fragment_re.search(self._url)
if not match:
return None
return match.group(1)
_hash_re = re.compile(
r'({choices})=([a-f0-9]+)'.format(choices="|".join(_SUPPORTED_HASHES))
)
@property
def hash(self) -> Optional[str]:
match = self._hash_re.search(self._url)
if match:
return match.group(2)
return None
@property
def hash_name(self) -> Optional[str]:
match = self._hash_re.search(self._url)
if match:
return match.group(1)
return None
@property
def show_url(self) -> str:
return posixpath.basename(self._url.split('#', 1)[0].split('?', 1)[0])
@property
def is_file(self) -> bool:
return self.scheme == 'file'
def is_existing_dir(self) -> bool:
return self.is_file and os.path.isdir(self.file_path)
@property
def is_wheel(self) -> bool:
return self.ext == WHEEL_EXTENSION
@property
def is_vcs(self) -> bool:
from pip._internal.vcs import vcs
return self.scheme in vcs.all_schemes
@property
def is_yanked(self) -> bool:
return self.yanked_reason is not None
@property
def has_hash(self) -> bool:
return self.hash_name is not None
def is_hash_allowed(self, hashes: Optional[Hashes]) -> bool:
"""
Return True if the link has a hash and it is allowed.
"""
if hashes is None or not self.has_hash:
return False
# Assert non-None so mypy knows self.hash_name and self.hash are str.
assert self.hash_name is not None
assert self.hash is not None
return hashes.is_hash_allowed(self.hash_name, hex_digest=self.hash)
class _CleanResult(NamedTuple):
"""Convert link for equivalency check.
This is used in the resolver to check whether two URL-specified requirements
likely point to the same distribution and can be considered equivalent. This
equivalency logic avoids comparing URLs literally, which can be too strict
(e.g. "a=1&b=2" vs "b=2&a=1") and produce conflicts unexpecting to users.
Currently this does three things:
1. Drop the basic auth part. This is technically wrong since a server can
serve different content based on auth, but if it does that, it is even
impossible to guarantee two URLs without auth are equivalent, since
the user can input different auth information when prompted. So the
practical solution is to assume the auth doesn't affect the response.
2. Parse the query to avoid the ordering issue. Note that ordering under the
same key in the query are NOT cleaned; i.e. "a=1&a=2" and "a=2&a=1" are
still considered different.
3. Explicitly drop most of the fragment part, except ``subdirectory=`` and
hash values, since it should have no impact the downloaded content. Note
that this drops the "egg=" part historically used to denote the requested
project (and extras), which is wrong in the strictest sense, but too many
people are supplying it inconsistently to cause superfluous resolution
conflicts, so we choose to also ignore them.
"""
parsed: urllib.parse.SplitResult
query: Dict[str, List[str]]
subdirectory: str
hashes: Dict[str, str]
def _clean_link(link: Link) -> _CleanResult:
parsed = link._parsed_url
netloc = parsed.netloc.rsplit("@", 1)[-1]
# According to RFC 8089, an empty host in file: means localhost.
if parsed.scheme == "file" and not netloc:
netloc = "localhost"
fragment = urllib.parse.parse_qs(parsed.fragment)
if "egg" in fragment:
logger.debug("Ignoring egg= fragment in %s", link)
try:
# If there are multiple subdirectory values, use the first one.
# This matches the behavior of Link.subdirectory_fragment.
subdirectory = fragment["subdirectory"][0]
except (IndexError, KeyError):
subdirectory = ""
# If there are multiple hash values under the same algorithm, use the
# first one. This matches the behavior of Link.hash_value.
hashes = {k: fragment[k][0] for k in _SUPPORTED_HASHES if k in fragment}
return _CleanResult(
parsed=parsed._replace(netloc=netloc, query="", fragment=""),
query=urllib.parse.parse_qs(parsed.query),
subdirectory=subdirectory,
hashes=hashes,
)
@functools.lru_cache(maxsize=None)
def links_equivalent(link1: Link, link2: Link) -> bool:
return _clean_link(link1) == _clean_link(link2)

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"""
For types associated with installation schemes.
For a general overview of available schemes and their context, see
https://docs.python.org/3/install/index.html#alternate-installation.
"""
SCHEME_KEYS = ['platlib', 'purelib', 'headers', 'scripts', 'data']
class Scheme:
"""A Scheme holds paths which are used as the base directories for
artifacts associated with a Python package.
"""
__slots__ = SCHEME_KEYS
def __init__(
self,
platlib: str,
purelib: str,
headers: str,
scripts: str,
data: str,
) -> None:
self.platlib = platlib
self.purelib = purelib
self.headers = headers
self.scripts = scripts
self.data = data

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import itertools
import logging
import os
import posixpath
import urllib.parse
from typing import List
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.models.index import PyPI
from pip._internal.utils.compat import has_tls
from pip._internal.utils.misc import normalize_path, redact_auth_from_url
logger = logging.getLogger(__name__)
class SearchScope:
"""
Encapsulates the locations that pip is configured to search.
"""
__slots__ = ["find_links", "index_urls"]
@classmethod
def create(
cls,
find_links: List[str],
index_urls: List[str],
) -> "SearchScope":
"""
Create a SearchScope object after normalizing the `find_links`.
"""
# Build find_links. If an argument starts with ~, it may be
# a local file relative to a home directory. So try normalizing
# it and if it exists, use the normalized version.
# This is deliberately conservative - it might be fine just to
# blindly normalize anything starting with a ~...
built_find_links: List[str] = []
for link in find_links:
if link.startswith('~'):
new_link = normalize_path(link)
if os.path.exists(new_link):
link = new_link
built_find_links.append(link)
# If we don't have TLS enabled, then WARN if anyplace we're looking
# relies on TLS.
if not has_tls():
for link in itertools.chain(index_urls, built_find_links):
parsed = urllib.parse.urlparse(link)
if parsed.scheme == 'https':
logger.warning(
'pip is configured with locations that require '
'TLS/SSL, however the ssl module in Python is not '
'available.'
)
break
return cls(
find_links=built_find_links,
index_urls=index_urls,
)
def __init__(
self,
find_links: List[str],
index_urls: List[str],
) -> None:
self.find_links = find_links
self.index_urls = index_urls
def get_formatted_locations(self) -> str:
lines = []
redacted_index_urls = []
if self.index_urls and self.index_urls != [PyPI.simple_url]:
for url in self.index_urls:
redacted_index_url = redact_auth_from_url(url)
# Parse the URL
purl = urllib.parse.urlsplit(redacted_index_url)
# URL is generally invalid if scheme and netloc is missing
# there are issues with Python and URL parsing, so this test
# is a bit crude. See bpo-20271, bpo-23505. Python doesn't
# always parse invalid URLs correctly - it should raise
# exceptions for malformed URLs
if not purl.scheme and not purl.netloc:
logger.warning(
'The index url "%s" seems invalid, '
'please provide a scheme.', redacted_index_url)
redacted_index_urls.append(redacted_index_url)
lines.append('Looking in indexes: {}'.format(
', '.join(redacted_index_urls)))
if self.find_links:
lines.append(
'Looking in links: {}'.format(', '.join(
redact_auth_from_url(url) for url in self.find_links))
)
return '\n'.join(lines)
def get_index_urls_locations(self, project_name: str) -> List[str]:
"""Returns the locations found via self.index_urls
Checks the url_name on the main (first in the list) index and
use this url_name to produce all locations
"""
def mkurl_pypi_url(url: str) -> str:
loc = posixpath.join(
url,
urllib.parse.quote(canonicalize_name(project_name)))
# For maximum compatibility with easy_install, ensure the path
# ends in a trailing slash. Although this isn't in the spec
# (and PyPI can handle it without the slash) some other index
# implementations might break if they relied on easy_install's
# behavior.
if not loc.endswith('/'):
loc = loc + '/'
return loc
return [mkurl_pypi_url(url) for url in self.index_urls]

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from typing import Optional
from pip._internal.models.format_control import FormatControl
class SelectionPreferences:
"""
Encapsulates the candidate selection preferences for downloading
and installing files.
"""
__slots__ = ['allow_yanked', 'allow_all_prereleases', 'format_control',
'prefer_binary', 'ignore_requires_python']
# Don't include an allow_yanked default value to make sure each call
# site considers whether yanked releases are allowed. This also causes
# that decision to be made explicit in the calling code, which helps
# people when reading the code.
def __init__(
self,
allow_yanked: bool,
allow_all_prereleases: bool = False,
format_control: Optional[FormatControl] = None,
prefer_binary: bool = False,
ignore_requires_python: Optional[bool] = None,
) -> None:
"""Create a SelectionPreferences object.
:param allow_yanked: Whether files marked as yanked (in the sense
of PEP 592) are permitted to be candidates for install.
:param format_control: A FormatControl object or None. Used to control
the selection of source packages / binary packages when consulting
the index and links.
:param prefer_binary: Whether to prefer an old, but valid, binary
dist over a new source dist.
:param ignore_requires_python: Whether to ignore incompatible
"Requires-Python" values in links. Defaults to False.
"""
if ignore_requires_python is None:
ignore_requires_python = False
self.allow_yanked = allow_yanked
self.allow_all_prereleases = allow_all_prereleases
self.format_control = format_control
self.prefer_binary = prefer_binary
self.ignore_requires_python = ignore_requires_python

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import sys
from typing import List, Optional, Tuple
from pip._vendor.packaging.tags import Tag
from pip._internal.utils.compatibility_tags import get_supported, version_info_to_nodot
from pip._internal.utils.misc import normalize_version_info
class TargetPython:
"""
Encapsulates the properties of a Python interpreter one is targeting
for a package install, download, etc.
"""
__slots__ = [
"_given_py_version_info",
"abis",
"implementation",
"platforms",
"py_version",
"py_version_info",
"_valid_tags",
]
def __init__(
self,
platforms: Optional[List[str]] = None,
py_version_info: Optional[Tuple[int, ...]] = None,
abis: Optional[List[str]] = None,
implementation: Optional[str] = None,
) -> None:
"""
:param platforms: A list of strings or None. If None, searches for
packages that are supported by the current system. Otherwise, will
find packages that can be built on the platforms passed in. These
packages will only be downloaded for distribution: they will
not be built locally.
:param py_version_info: An optional tuple of ints representing the
Python version information to use (e.g. `sys.version_info[:3]`).
This can have length 1, 2, or 3 when provided.
:param abis: A list of strings or None. This is passed to
compatibility_tags.py's get_supported() function as is.
:param implementation: A string or None. This is passed to
compatibility_tags.py's get_supported() function as is.
"""
# Store the given py_version_info for when we call get_supported().
self._given_py_version_info = py_version_info
if py_version_info is None:
py_version_info = sys.version_info[:3]
else:
py_version_info = normalize_version_info(py_version_info)
py_version = '.'.join(map(str, py_version_info[:2]))
self.abis = abis
self.implementation = implementation
self.platforms = platforms
self.py_version = py_version
self.py_version_info = py_version_info
# This is used to cache the return value of get_tags().
self._valid_tags: Optional[List[Tag]] = None
def format_given(self) -> str:
"""
Format the given, non-None attributes for display.
"""
display_version = None
if self._given_py_version_info is not None:
display_version = '.'.join(
str(part) for part in self._given_py_version_info
)
key_values = [
('platforms', self.platforms),
('version_info', display_version),
('abis', self.abis),
('implementation', self.implementation),
]
return ' '.join(
f'{key}={value!r}' for key, value in key_values
if value is not None
)
def get_tags(self) -> List[Tag]:
"""
Return the supported PEP 425 tags to check wheel candidates against.
The tags are returned in order of preference (most preferred first).
"""
if self._valid_tags is None:
# Pass versions=None if no py_version_info was given since
# versions=None uses special default logic.
py_version_info = self._given_py_version_info
if py_version_info is None:
version = None
else:
version = version_info_to_nodot(py_version_info)
tags = get_supported(
version=version,
platforms=self.platforms,
abis=self.abis,
impl=self.implementation,
)
self._valid_tags = tags
return self._valid_tags

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"""Represents a wheel file and provides access to the various parts of the
name that have meaning.
"""
import re
from typing import Dict, Iterable, List
from pip._vendor.packaging.tags import Tag
from pip._internal.exceptions import InvalidWheelFilename
class Wheel:
"""A wheel file"""
wheel_file_re = re.compile(
r"""^(?P<namever>(?P<name>.+?)-(?P<ver>.*?))
((-(?P<build>\d[^-]*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
\.whl|\.dist-info)$""",
re.VERBOSE
)
def __init__(self, filename: str) -> None:
"""
:raises InvalidWheelFilename: when the filename is invalid for a wheel
"""
wheel_info = self.wheel_file_re.match(filename)
if not wheel_info:
raise InvalidWheelFilename(
f"{filename} is not a valid wheel filename."
)
self.filename = filename
self.name = wheel_info.group('name').replace('_', '-')
# we'll assume "_" means "-" due to wheel naming scheme
# (https://github.com/pypa/pip/issues/1150)
self.version = wheel_info.group('ver').replace('_', '-')
self.build_tag = wheel_info.group('build')
self.pyversions = wheel_info.group('pyver').split('.')
self.abis = wheel_info.group('abi').split('.')
self.plats = wheel_info.group('plat').split('.')
# All the tag combinations from this file
self.file_tags = {
Tag(x, y, z) for x in self.pyversions
for y in self.abis for z in self.plats
}
def get_formatted_file_tags(self) -> List[str]:
"""Return the wheel's tags as a sorted list of strings."""
return sorted(str(tag) for tag in self.file_tags)
def support_index_min(self, tags: List[Tag]) -> int:
"""Return the lowest index that one of the wheel's file_tag combinations
achieves in the given list of supported tags.
For example, if there are 8 supported tags and one of the file tags
is first in the list, then return 0.
:param tags: the PEP 425 tags to check the wheel against, in order
with most preferred first.
:raises ValueError: If none of the wheel's file tags match one of
the supported tags.
"""
return min(tags.index(tag) for tag in self.file_tags if tag in tags)
def find_most_preferred_tag(
self, tags: List[Tag], tag_to_priority: Dict[Tag, int]
) -> int:
"""Return the priority of the most preferred tag that one of the wheel's file
tag combinations achieves in the given list of supported tags using the given
tag_to_priority mapping, where lower priorities are more-preferred.
This is used in place of support_index_min in some cases in order to avoid
an expensive linear scan of a large list of tags.
:param tags: the PEP 425 tags to check the wheel against.
:param tag_to_priority: a mapping from tag to priority of that tag, where
lower is more preferred.
:raises ValueError: If none of the wheel's file tags match one of
the supported tags.
"""
return min(
tag_to_priority[tag] for tag in self.file_tags if tag in tag_to_priority
)
def supported(self, tags: Iterable[Tag]) -> bool:
"""Return whether the wheel is compatible with one of the given tags.
:param tags: the PEP 425 tags to check the wheel against.
"""
return not self.file_tags.isdisjoint(tags)

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"""Contains purely network-related utilities.
"""

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"""Network Authentication Helpers
Contains interface (MultiDomainBasicAuth) and associated glue code for
providing credentials in the context of network requests.
"""
import urllib.parse
from typing import Any, Dict, List, Optional, Tuple
from pip._vendor.requests.auth import AuthBase, HTTPBasicAuth
from pip._vendor.requests.models import Request, Response
from pip._vendor.requests.utils import get_netrc_auth
from pip._internal.utils.logging import getLogger
from pip._internal.utils.misc import (
ask,
ask_input,
ask_password,
remove_auth_from_url,
split_auth_netloc_from_url,
)
from pip._internal.vcs.versioncontrol import AuthInfo
logger = getLogger(__name__)
Credentials = Tuple[str, str, str]
try:
import keyring
except ImportError:
keyring = None
except Exception as exc:
logger.warning(
"Keyring is skipped due to an exception: %s",
str(exc),
)
keyring = None
def get_keyring_auth(url: Optional[str], username: Optional[str]) -> Optional[AuthInfo]:
"""Return the tuple auth for a given url from keyring."""
global keyring
if not url or not keyring:
return None
try:
try:
get_credential = keyring.get_credential
except AttributeError:
pass
else:
logger.debug("Getting credentials from keyring for %s", url)
cred = get_credential(url, username)
if cred is not None:
return cred.username, cred.password
return None
if username:
logger.debug("Getting password from keyring for %s", url)
password = keyring.get_password(url, username)
if password:
return username, password
except Exception as exc:
logger.warning(
"Keyring is skipped due to an exception: %s",
str(exc),
)
keyring = None
return None
class MultiDomainBasicAuth(AuthBase):
def __init__(
self, prompting: bool = True, index_urls: Optional[List[str]] = None
) -> None:
self.prompting = prompting
self.index_urls = index_urls
self.passwords: Dict[str, AuthInfo] = {}
# When the user is prompted to enter credentials and keyring is
# available, we will offer to save them. If the user accepts,
# this value is set to the credentials they entered. After the
# request authenticates, the caller should call
# ``save_credentials`` to save these.
self._credentials_to_save: Optional[Credentials] = None
def _get_index_url(self, url: str) -> Optional[str]:
"""Return the original index URL matching the requested URL.
Cached or dynamically generated credentials may work against
the original index URL rather than just the netloc.
The provided url should have had its username and password
removed already. If the original index url had credentials then
they will be included in the return value.
Returns None if no matching index was found, or if --no-index
was specified by the user.
"""
if not url or not self.index_urls:
return None
for u in self.index_urls:
prefix = remove_auth_from_url(u).rstrip("/") + "/"
if url.startswith(prefix):
return u
return None
def _get_new_credentials(
self,
original_url: str,
allow_netrc: bool = True,
allow_keyring: bool = False,
) -> AuthInfo:
"""Find and return credentials for the specified URL."""
# Split the credentials and netloc from the url.
url, netloc, url_user_password = split_auth_netloc_from_url(
original_url,
)
# Start with the credentials embedded in the url
username, password = url_user_password
if username is not None and password is not None:
logger.debug("Found credentials in url for %s", netloc)
return url_user_password
# Find a matching index url for this request
index_url = self._get_index_url(url)
if index_url:
# Split the credentials from the url.
index_info = split_auth_netloc_from_url(index_url)
if index_info:
index_url, _, index_url_user_password = index_info
logger.debug("Found index url %s", index_url)
# If an index URL was found, try its embedded credentials
if index_url and index_url_user_password[0] is not None:
username, password = index_url_user_password
if username is not None and password is not None:
logger.debug("Found credentials in index url for %s", netloc)
return index_url_user_password
# Get creds from netrc if we still don't have them
if allow_netrc:
netrc_auth = get_netrc_auth(original_url)
if netrc_auth:
logger.debug("Found credentials in netrc for %s", netloc)
return netrc_auth
# If we don't have a password and keyring is available, use it.
if allow_keyring:
# The index url is more specific than the netloc, so try it first
# fmt: off
kr_auth = (
get_keyring_auth(index_url, username) or
get_keyring_auth(netloc, username)
)
# fmt: on
if kr_auth:
logger.debug("Found credentials in keyring for %s", netloc)
return kr_auth
return username, password
def _get_url_and_credentials(
self, original_url: str
) -> Tuple[str, Optional[str], Optional[str]]:
"""Return the credentials to use for the provided URL.
If allowed, netrc and keyring may be used to obtain the
correct credentials.
Returns (url_without_credentials, username, password). Note
that even if the original URL contains credentials, this
function may return a different username and password.
"""
url, netloc, _ = split_auth_netloc_from_url(original_url)
# Try to get credentials from original url
username, password = self._get_new_credentials(original_url)
# If credentials not found, use any stored credentials for this netloc
if username is None and password is None:
username, password = self.passwords.get(netloc, (None, None))
if username is not None or password is not None:
# Convert the username and password if they're None, so that
# this netloc will show up as "cached" in the conditional above.
# Further, HTTPBasicAuth doesn't accept None, so it makes sense to
# cache the value that is going to be used.
username = username or ""
password = password or ""
# Store any acquired credentials.
self.passwords[netloc] = (username, password)
assert (
# Credentials were found
(username is not None and password is not None)
# Credentials were not found
or (username is None and password is None)
), f"Could not load credentials from url: {original_url}"
return url, username, password
def __call__(self, req: Request) -> Request:
# Get credentials for this request
url, username, password = self._get_url_and_credentials(req.url)
# Set the url of the request to the url without any credentials
req.url = url
if username is not None and password is not None:
# Send the basic auth with this request
req = HTTPBasicAuth(username, password)(req)
# Attach a hook to handle 401 responses
req.register_hook("response", self.handle_401)
return req
# Factored out to allow for easy patching in tests
def _prompt_for_password(
self, netloc: str
) -> Tuple[Optional[str], Optional[str], bool]:
username = ask_input(f"User for {netloc}: ")
if not username:
return None, None, False
auth = get_keyring_auth(netloc, username)
if auth and auth[0] is not None and auth[1] is not None:
return auth[0], auth[1], False
password = ask_password("Password: ")
return username, password, True
# Factored out to allow for easy patching in tests
def _should_save_password_to_keyring(self) -> bool:
if not keyring:
return False
return ask("Save credentials to keyring [y/N]: ", ["y", "n"]) == "y"
def handle_401(self, resp: Response, **kwargs: Any) -> Response:
# We only care about 401 responses, anything else we want to just
# pass through the actual response
if resp.status_code != 401:
return resp
# We are not able to prompt the user so simply return the response
if not self.prompting:
return resp
parsed = urllib.parse.urlparse(resp.url)
# Query the keyring for credentials:
username, password = self._get_new_credentials(
resp.url,
allow_netrc=False,
allow_keyring=True,
)
# Prompt the user for a new username and password
save = False
if not username and not password:
username, password, save = self._prompt_for_password(parsed.netloc)
# Store the new username and password to use for future requests
self._credentials_to_save = None
if username is not None and password is not None:
self.passwords[parsed.netloc] = (username, password)
# Prompt to save the password to keyring
if save and self._should_save_password_to_keyring():
self._credentials_to_save = (parsed.netloc, username, password)
# Consume content and release the original connection to allow our new
# request to reuse the same one.
resp.content
resp.raw.release_conn()
# Add our new username and password to the request
req = HTTPBasicAuth(username or "", password or "")(resp.request)
req.register_hook("response", self.warn_on_401)
# On successful request, save the credentials that were used to
# keyring. (Note that if the user responded "no" above, this member
# is not set and nothing will be saved.)
if self._credentials_to_save:
req.register_hook("response", self.save_credentials)
# Send our new request
new_resp = resp.connection.send(req, **kwargs)
new_resp.history.append(resp)
return new_resp
def warn_on_401(self, resp: Response, **kwargs: Any) -> None:
"""Response callback to warn about incorrect credentials."""
if resp.status_code == 401:
logger.warning(
"401 Error, Credentials not correct for %s",
resp.request.url,
)
def save_credentials(self, resp: Response, **kwargs: Any) -> None:
"""Response callback to save credentials on success."""
assert keyring is not None, "should never reach here without keyring"
if not keyring:
return
creds = self._credentials_to_save
self._credentials_to_save = None
if creds and resp.status_code < 400:
try:
logger.info("Saving credentials to keyring")
keyring.set_password(*creds)
except Exception:
logger.exception("Failed to save credentials")

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"""HTTP cache implementation.
"""
import os
from contextlib import contextmanager
from typing import Iterator, Optional
from pip._vendor.cachecontrol.cache import BaseCache
from pip._vendor.cachecontrol.caches import FileCache
from pip._vendor.requests.models import Response
from pip._internal.utils.filesystem import adjacent_tmp_file, replace
from pip._internal.utils.misc import ensure_dir
def is_from_cache(response: Response) -> bool:
return getattr(response, "from_cache", False)
@contextmanager
def suppressed_cache_errors() -> Iterator[None]:
"""If we can't access the cache then we can just skip caching and process
requests as if caching wasn't enabled.
"""
try:
yield
except OSError:
pass
class SafeFileCache(BaseCache):
"""
A file based cache which is safe to use even when the target directory may
not be accessible or writable.
"""
def __init__(self, directory: str) -> None:
assert directory is not None, "Cache directory must not be None."
super().__init__()
self.directory = directory
def _get_cache_path(self, name: str) -> str:
# From cachecontrol.caches.file_cache.FileCache._fn, brought into our
# class for backwards-compatibility and to avoid using a non-public
# method.
hashed = FileCache.encode(name)
parts = list(hashed[:5]) + [hashed]
return os.path.join(self.directory, *parts)
def get(self, key: str) -> Optional[bytes]:
path = self._get_cache_path(key)
with suppressed_cache_errors():
with open(path, "rb") as f:
return f.read()
def set(self, key: str, value: bytes) -> None:
path = self._get_cache_path(key)
with suppressed_cache_errors():
ensure_dir(os.path.dirname(path))
with adjacent_tmp_file(path) as f:
f.write(value)
replace(f.name, path)
def delete(self, key: str) -> None:
path = self._get_cache_path(key)
with suppressed_cache_errors():
os.remove(path)

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venv/Lib/site-packages/pip/_internal/network/download.py Normal file
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"""Download files with progress indicators.
"""
import cgi
import logging
import mimetypes
import os
from typing import Iterable, Optional, Tuple
from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
from pip._internal.cli.progress_bars import DownloadProgressProvider
from pip._internal.exceptions import NetworkConnectionError
from pip._internal.models.index import PyPI
from pip._internal.models.link import Link
from pip._internal.network.cache import is_from_cache
from pip._internal.network.session import PipSession
from pip._internal.network.utils import HEADERS, raise_for_status, response_chunks
from pip._internal.utils.misc import format_size, redact_auth_from_url, splitext
logger = logging.getLogger(__name__)
def _get_http_response_size(resp: Response) -> Optional[int]:
try:
return int(resp.headers["content-length"])
except (ValueError, KeyError, TypeError):
return None
def _prepare_download(
resp: Response,
link: Link,
progress_bar: str,
) -> Iterable[bytes]:
total_length = _get_http_response_size(resp)
if link.netloc == PyPI.file_storage_domain:
url = link.show_url
else:
url = link.url_without_fragment
logged_url = redact_auth_from_url(url)
if total_length:
logged_url = "{} ({})".format(logged_url, format_size(total_length))
if is_from_cache(resp):
logger.info("Using cached %s", logged_url)
else:
logger.info("Downloading %s", logged_url)
if logger.getEffectiveLevel() > logging.INFO:
show_progress = False
elif is_from_cache(resp):
show_progress = False
elif not total_length:
show_progress = True
elif total_length > (40 * 1000):
show_progress = True
else:
show_progress = False
chunks = response_chunks(resp, CONTENT_CHUNK_SIZE)
if not show_progress:
return chunks
return DownloadProgressProvider(progress_bar, max=total_length)(chunks)
def sanitize_content_filename(filename: str) -> str:
"""
Sanitize the "filename" value from a Content-Disposition header.
"""
return os.path.basename(filename)
def parse_content_disposition(content_disposition: str, default_filename: str) -> str:
"""
Parse the "filename" value from a Content-Disposition header, and
return the default filename if the result is empty.
"""
_type, params = cgi.parse_header(content_disposition)
filename = params.get("filename")
if filename:
# We need to sanitize the filename to prevent directory traversal
# in case the filename contains ".." path parts.
filename = sanitize_content_filename(filename)
return filename or default_filename
def _get_http_response_filename(resp: Response, link: Link) -> str:
"""Get an ideal filename from the given HTTP response, falling back to
the link filename if not provided.
"""
filename = link.filename # fallback
# Have a look at the Content-Disposition header for a better guess
content_disposition = resp.headers.get("content-disposition")
if content_disposition:
filename = parse_content_disposition(content_disposition, filename)
ext: Optional[str] = splitext(filename)[1]
if not ext:
ext = mimetypes.guess_extension(resp.headers.get("content-type", ""))
if ext:
filename += ext
if not ext and link.url != resp.url:
ext = os.path.splitext(resp.url)[1]
if ext:
filename += ext
return filename
def _http_get_download(session: PipSession, link: Link) -> Response:
target_url = link.url.split("#", 1)[0]
resp = session.get(target_url, headers=HEADERS, stream=True)
raise_for_status(resp)
return resp
class Downloader:
def __init__(
self,
session: PipSession,
progress_bar: str,
) -> None:
self._session = session
self._progress_bar = progress_bar
def __call__(self, link: Link, location: str) -> Tuple[str, str]:
"""Download the file given by link into location."""
try:
resp = _http_get_download(self._session, link)
except NetworkConnectionError as e:
assert e.response is not None
logger.critical(
"HTTP error %s while getting %s", e.response.status_code, link
)
raise
filename = _get_http_response_filename(resp, link)
filepath = os.path.join(location, filename)
chunks = _prepare_download(resp, link, self._progress_bar)
with open(filepath, "wb") as content_file:
for chunk in chunks:
content_file.write(chunk)
content_type = resp.headers.get("Content-Type", "")
return filepath, content_type
class BatchDownloader:
def __init__(
self,
session: PipSession,
progress_bar: str,
) -> None:
self._session = session
self._progress_bar = progress_bar
def __call__(
self, links: Iterable[Link], location: str
) -> Iterable[Tuple[Link, Tuple[str, str]]]:
"""Download the files given by links into location."""
for link in links:
try:
resp = _http_get_download(self._session, link)
except NetworkConnectionError as e:
assert e.response is not None
logger.critical(
"HTTP error %s while getting %s",
e.response.status_code,
link,
)
raise
filename = _get_http_response_filename(resp, link)
filepath = os.path.join(location, filename)
chunks = _prepare_download(resp, link, self._progress_bar)
with open(filepath, "wb") as content_file:
for chunk in chunks:
content_file.write(chunk)
content_type = resp.headers.get("Content-Type", "")
yield link, (filepath, content_type)

210
venv/Lib/site-packages/pip/_internal/network/lazy_wheel.py Normal file
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"""Lazy ZIP over HTTP"""
__all__ = ["HTTPRangeRequestUnsupported", "dist_from_wheel_url"]
from bisect import bisect_left, bisect_right
from contextlib import contextmanager
from tempfile import NamedTemporaryFile
from typing import Any, Dict, Iterator, List, Optional, Tuple
from zipfile import BadZipfile, ZipFile
from pip._vendor.pkg_resources import Distribution
from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
from pip._internal.network.session import PipSession
from pip._internal.network.utils import HEADERS, raise_for_status, response_chunks
from pip._internal.utils.wheel import pkg_resources_distribution_for_wheel
class HTTPRangeRequestUnsupported(Exception):
pass
def dist_from_wheel_url(name: str, url: str, session: PipSession) -> Distribution:
"""Return a pkg_resources.Distribution from the given wheel URL.
This uses HTTP range requests to only fetch the potion of the wheel
containing metadata, just enough for the object to be constructed.
If such requests are not supported, HTTPRangeRequestUnsupported
is raised.
"""
with LazyZipOverHTTP(url, session) as wheel:
# For read-only ZIP files, ZipFile only needs methods read,
# seek, seekable and tell, not the whole IO protocol.
zip_file = ZipFile(wheel) # type: ignore
# After context manager exit, wheel.name
# is an invalid file by intention.
return pkg_resources_distribution_for_wheel(zip_file, name, wheel.name)
class LazyZipOverHTTP:
"""File-like object mapped to a ZIP file over HTTP.
This uses HTTP range requests to lazily fetch the file's content,
which is supposed to be fed to ZipFile. If such requests are not
supported by the server, raise HTTPRangeRequestUnsupported
during initialization.
"""
def __init__(
self, url: str, session: PipSession, chunk_size: int = CONTENT_CHUNK_SIZE
) -> None:
head = session.head(url, headers=HEADERS)
raise_for_status(head)
assert head.status_code == 200
self._session, self._url, self._chunk_size = session, url, chunk_size
self._length = int(head.headers["Content-Length"])
self._file = NamedTemporaryFile()
self.truncate(self._length)
self._left: List[int] = []
self._right: List[int] = []
if "bytes" not in head.headers.get("Accept-Ranges", "none"):
raise HTTPRangeRequestUnsupported("range request is not supported")
self._check_zip()
@property
def mode(self) -> str:
"""Opening mode, which is always rb."""
return "rb"
@property
def name(self) -> str:
"""Path to the underlying file."""
return self._file.name
def seekable(self) -> bool:
"""Return whether random access is supported, which is True."""
return True
def close(self) -> None:
"""Close the file."""
self._file.close()
@property
def closed(self) -> bool:
"""Whether the file is closed."""
return self._file.closed
def read(self, size: int = -1) -> bytes:
"""Read up to size bytes from the object and return them.
As a convenience, if size is unspecified or -1,
all bytes until EOF are returned. Fewer than
size bytes may be returned if EOF is reached.
"""
download_size = max(size, self._chunk_size)
start, length = self.tell(), self._length
stop = length if size < 0 else min(start + download_size, length)
start = max(0, stop - download_size)
self._download(start, stop - 1)
return self._file.read(size)
def readable(self) -> bool:
"""Return whether the file is readable, which is True."""
return True
def seek(self, offset: int, whence: int = 0) -> int:
"""Change stream position and return the new absolute position.
Seek to offset relative position indicated by whence:
* 0: Start of stream (the default). pos should be >= 0;
* 1: Current position - pos may be negative;
* 2: End of stream - pos usually negative.
"""
return self._file.seek(offset, whence)
def tell(self) -> int:
"""Return the current position."""
return self._file.tell()
def truncate(self, size: Optional[int] = None) -> int:
"""Resize the stream to the given size in bytes.
If size is unspecified resize to the current position.
The current stream position isn't changed.
Return the new file size.
"""
return self._file.truncate(size)
def writable(self) -> bool:
"""Return False."""
return False
def __enter__(self) -> "LazyZipOverHTTP":
self._file.__enter__()
return self
def __exit__(self, *exc: Any) -> Optional[bool]:
return self._file.__exit__(*exc)
@contextmanager
def _stay(self) -> Iterator[None]:
"""Return a context manager keeping the position.
At the end of the block, seek back to original position.
"""
pos = self.tell()
try:
yield
finally:
self.seek(pos)
def _check_zip(self) -> None:
"""Check and download until the file is a valid ZIP."""
end = self._length - 1
for start in reversed(range(0, end, self._chunk_size)):
self._download(start, end)
with self._stay():
try:
# For read-only ZIP files, ZipFile only needs
# methods read, seek, seekable and tell.
ZipFile(self) # type: ignore
except BadZipfile:
pass
else:
break
def _stream_response(
self, start: int, end: int, base_headers: Dict[str, str] = HEADERS
) -> Response:
"""Return HTTP response to a range request from start to end."""
headers = base_headers.copy()
headers["Range"] = f"bytes={start}-{end}"
# TODO: Get range requests to be correctly cached
headers["Cache-Control"] = "no-cache"
return self._session.get(self._url, headers=headers, stream=True)
def _merge(
self, start: int, end: int, left: int, right: int
) -> Iterator[Tuple[int, int]]:
"""Return an iterator of intervals to be fetched.
Args:
start (int): Start of needed interval
end (int): End of needed interval
left (int): Index of first overlapping downloaded data
right (int): Index after last overlapping downloaded data
"""
lslice, rslice = self._left[left:right], self._right[left:right]
i = start = min([start] + lslice[:1])
end = max([end] + rslice[-1:])
for j, k in zip(lslice, rslice):
if j > i:
yield i, j - 1
i = k + 1
if i <= end:
yield i, end
self._left[left:right], self._right[left:right] = [start], [end]
def _download(self, start: int, end: int) -> None:
"""Download bytes from start to end inclusively."""
with self._stay():
left = bisect_left(self._right, start)
right = bisect_right(self._left, end)
for start, end in self._merge(start, end, left, right):
response = self._stream_response(start, end)
response.raise_for_status()
self.seek(start)
for chunk in response_chunks(response, self._chunk_size):
self._file.write(chunk)

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venv/Lib/site-packages/pip/_internal/network/session.py Normal file
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"""PipSession and supporting code, containing all pip-specific
network request configuration and behavior.
"""
# When mypy runs on Windows the call to distro.linux_distribution() is skipped
# resulting in the failure:
#
# error: unused 'type: ignore' comment
#
# If the upstream module adds typing, this comment should be removed. See
# https://github.com/nir0s/distro/pull/269
#
# mypy: warn-unused-ignores=False
import email.utils
import ipaddress
import json
import logging
import mimetypes
import os
import platform
import shutil
import subprocess
import sys
import urllib.parse
import warnings
from typing import Any, Dict, Iterator, List, Mapping, Optional, Sequence, Tuple, Union
from pip._vendor import requests, urllib3
from pip._vendor.cachecontrol import CacheControlAdapter
from pip._vendor.requests.adapters import BaseAdapter, HTTPAdapter
from pip._vendor.requests.models import PreparedRequest, Response
from pip._vendor.requests.structures import CaseInsensitiveDict
from pip._vendor.urllib3.connectionpool import ConnectionPool
from pip._vendor.urllib3.exceptions import InsecureRequestWarning
from pip import __version__
from pip._internal.metadata import get_default_environment
from pip._internal.models.link import Link
from pip._internal.network.auth import MultiDomainBasicAuth
from pip._internal.network.cache import SafeFileCache
# Import ssl from compat so the initial import occurs in only one place.
from pip._internal.utils.compat import has_tls
from pip._internal.utils.glibc import libc_ver
from pip._internal.utils.misc import build_url_from_netloc, parse_netloc
from pip._internal.utils.urls import url_to_path
logger = logging.getLogger(__name__)
SecureOrigin = Tuple[str, str, Optional[Union[int, str]]]
# Ignore warning raised when using --trusted-host.
warnings.filterwarnings("ignore", category=InsecureRequestWarning)
SECURE_ORIGINS: List[SecureOrigin] = [
# protocol, hostname, port
# Taken from Chrome's list of secure origins (See: http://bit.ly/1qrySKC)
("https", "*", "*"),
("*", "localhost", "*"),
("*", "127.0.0.0/8", "*"),
("*", "::1/128", "*"),
("file", "*", None),
# ssh is always secure.
("ssh", "*", "*"),
]
# These are environment variables present when running under various
# CI systems. For each variable, some CI systems that use the variable
# are indicated. The collection was chosen so that for each of a number
# of popular systems, at least one of the environment variables is used.
# This list is used to provide some indication of and lower bound for
# CI traffic to PyPI. Thus, it is okay if the list is not comprehensive.
# For more background, see: https://github.com/pypa/pip/issues/5499
CI_ENVIRONMENT_VARIABLES = (
# Azure Pipelines
"BUILD_BUILDID",
# Jenkins
"BUILD_ID",
# AppVeyor, CircleCI, Codeship, Gitlab CI, Shippable, Travis CI
"CI",
# Explicit environment variable.
"PIP_IS_CI",
)
def looks_like_ci() -> bool:
"""
Return whether it looks like pip is running under CI.
"""
# We don't use the method of checking for a tty (e.g. using isatty())
# because some CI systems mimic a tty (e.g. Travis CI). Thus that
# method doesn't provide definitive information in either direction.
return any(name in os.environ for name in CI_ENVIRONMENT_VARIABLES)
def user_agent() -> str:
"""
Return a string representing the user agent.
"""
data: Dict[str, Any] = {
"installer": {"name": "pip", "version": __version__},
"python": platform.python_version(),
"implementation": {
"name": platform.python_implementation(),
},
}
if data["implementation"]["name"] == "CPython":
data["implementation"]["version"] = platform.python_version()
elif data["implementation"]["name"] == "PyPy":
pypy_version_info = sys.pypy_version_info # type: ignore
if pypy_version_info.releaselevel == "final":
pypy_version_info = pypy_version_info[:3]
data["implementation"]["version"] = ".".join(
[str(x) for x in pypy_version_info]
)
elif data["implementation"]["name"] == "Jython":
# Complete Guess
data["implementation"]["version"] = platform.python_version()
elif data["implementation"]["name"] == "IronPython":
# Complete Guess
data["implementation"]["version"] = platform.python_version()
if sys.platform.startswith("linux"):
from pip._vendor import distro
# https://github.com/nir0s/distro/pull/269
linux_distribution = distro.linux_distribution() # type: ignore
distro_infos = dict(
filter(
lambda x: x[1],
zip(["name", "version", "id"], linux_distribution),
)
)
libc = dict(
filter(
lambda x: x[1],
zip(["lib", "version"], libc_ver()),
)
)
if libc:
distro_infos["libc"] = libc
if distro_infos:
data["distro"] = distro_infos
if sys.platform.startswith("darwin") and platform.mac_ver()[0]:
data["distro"] = {"name": "macOS", "version": platform.mac_ver()[0]}
if platform.system():
data.setdefault("system", {})["name"] = platform.system()
if platform.release():
data.setdefault("system", {})["release"] = platform.release()
if platform.machine():
data["cpu"] = platform.machine()
if has_tls():
import _ssl as ssl
data["openssl_version"] = ssl.OPENSSL_VERSION
setuptools_dist = get_default_environment().get_distribution("setuptools")
if setuptools_dist is not None:
data["setuptools_version"] = str(setuptools_dist.version)
if shutil.which("rustc") is not None:
# If for any reason `rustc --version` fails, silently ignore it
try:
rustc_output = subprocess.check_output(
["rustc", "--version"], stderr=subprocess.STDOUT, timeout=0.5
)
except Exception:
pass
else:
if rustc_output.startswith(b"rustc "):
# The format of `rustc --version` is:
# `b'rustc 1.52.1 (9bc8c42bb 2021-05-09)\n'`
# We extract just the middle (1.52.1) part
data["rustc_version"] = rustc_output.split(b" ")[1].decode()
# Use None rather than False so as not to give the impression that
# pip knows it is not being run under CI. Rather, it is a null or
# inconclusive result. Also, we include some value rather than no
# value to make it easier to know that the check has been run.
data["ci"] = True if looks_like_ci() else None
user_data = os.environ.get("PIP_USER_AGENT_USER_DATA")
if user_data is not None:
data["user_data"] = user_data
return "{data[installer][name]}/{data[installer][version]} {json}".format(
data=data,
json=json.dumps(data, separators=(",", ":"), sort_keys=True),
)
class LocalFSAdapter(BaseAdapter):
def send(
self,
request: PreparedRequest,
stream: bool = False,
timeout: Optional[Union[float, Tuple[float, float]]] = None,
verify: Union[bool, str] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
proxies: Optional[Mapping[str, str]] = None,
) -> Response:
pathname = url_to_path(request.url)
resp = Response()
resp.status_code = 200
resp.url = request.url
try:
stats = os.stat(pathname)
except OSError as exc:
resp.status_code = 404
resp.raw = exc
else:
modified = email.utils.formatdate(stats.st_mtime, usegmt=True)
content_type = mimetypes.guess_type(pathname)[0] or "text/plain"
resp.headers = CaseInsensitiveDict(
{
"Content-Type": content_type,
"Content-Length": stats.st_size,
"Last-Modified": modified,
}
)
resp.raw = open(pathname, "rb")
resp.close = resp.raw.close
return resp
def close(self) -> None:
pass
class InsecureHTTPAdapter(HTTPAdapter):
def cert_verify(
self,
conn: ConnectionPool,
url: str,
verify: Union[bool, str],
cert: Optional[Union[str, Tuple[str, str]]],
) -> None:
super().cert_verify(conn=conn, url=url, verify=False, cert=cert)
class InsecureCacheControlAdapter(CacheControlAdapter):
def cert_verify(
self,
conn: ConnectionPool,
url: str,
verify: Union[bool, str],
cert: Optional[Union[str, Tuple[str, str]]],
) -> None:
super().cert_verify(conn=conn, url=url, verify=False, cert=cert)
class PipSession(requests.Session):
timeout: Optional[int] = None
def __init__(
self,
*args: Any,
retries: int = 0,
cache: Optional[str] = None,
trusted_hosts: Sequence[str] = (),
index_urls: Optional[List[str]] = None,
**kwargs: Any,
) -> None:
"""
:param trusted_hosts: Domains not to emit warnings for when not using
HTTPS.
"""
super().__init__(*args, **kwargs)
# Namespace the attribute with "pip_" just in case to prevent
# possible conflicts with the base class.
self.pip_trusted_origins: List[Tuple[str, Optional[int]]] = []
# Attach our User Agent to the request
self.headers["User-Agent"] = user_agent()
# Attach our Authentication handler to the session
self.auth = MultiDomainBasicAuth(index_urls=index_urls)
# Create our urllib3.Retry instance which will allow us to customize
# how we handle retries.
retries = urllib3.Retry(
# Set the total number of retries that a particular request can
# have.
total=retries,
# A 503 error from PyPI typically means that the Fastly -> Origin
# connection got interrupted in some way. A 503 error in general
# is typically considered a transient error so we'll go ahead and
# retry it.
# A 500 may indicate transient error in Amazon S3
# A 520 or 527 - may indicate transient error in CloudFlare
status_forcelist=[500, 503, 520, 527],
# Add a small amount of back off between failed requests in
# order to prevent hammering the service.
backoff_factor=0.25,
) # type: ignore
# Our Insecure HTTPAdapter disables HTTPS validation. It does not
# support caching so we'll use it for all http:// URLs.
# If caching is disabled, we will also use it for
# https:// hosts that we've marked as ignoring
# TLS errors for (trusted-hosts).
insecure_adapter = InsecureHTTPAdapter(max_retries=retries)
# We want to _only_ cache responses on securely fetched origins or when
# the host is specified as trusted. We do this because
# we can't validate the response of an insecurely/untrusted fetched
# origin, and we don't want someone to be able to poison the cache and
# require manual eviction from the cache to fix it.
if cache:
secure_adapter = CacheControlAdapter(
cache=SafeFileCache(cache),
max_retries=retries,
)
self._trusted_host_adapter = InsecureCacheControlAdapter(
cache=SafeFileCache(cache),
max_retries=retries,
)
else:
secure_adapter = HTTPAdapter(max_retries=retries)
self._trusted_host_adapter = insecure_adapter
self.mount("https://", secure_adapter)
self.mount("http://", insecure_adapter)
# Enable file:// urls
self.mount("file://", LocalFSAdapter())
for host in trusted_hosts:
self.add_trusted_host(host, suppress_logging=True)
def update_index_urls(self, new_index_urls: List[str]) -> None:
"""
:param new_index_urls: New index urls to update the authentication
handler with.
"""
self.auth.index_urls = new_index_urls
def add_trusted_host(
self, host: str, source: Optional[str] = None, suppress_logging: bool = False
) -> None:
"""
:param host: It is okay to provide a host that has previously been
added.
:param source: An optional source string, for logging where the host
string came from.
"""
if not suppress_logging:
msg = f"adding trusted host: {host!r}"
if source is not None:
msg += f" (from {source})"
logger.info(msg)
host_port = parse_netloc(host)
if host_port not in self.pip_trusted_origins:
self.pip_trusted_origins.append(host_port)
self.mount(build_url_from_netloc(host) + "/", self._trusted_host_adapter)
if not host_port[1]:
# Mount wildcard ports for the same host.
self.mount(build_url_from_netloc(host) + ":", self._trusted_host_adapter)
def iter_secure_origins(self) -> Iterator[SecureOrigin]:
yield from SECURE_ORIGINS
for host, port in self.pip_trusted_origins:
yield ("*", host, "*" if port is None else port)
def is_secure_origin(self, location: Link) -> bool:
# Determine if this url used a secure transport mechanism
parsed = urllib.parse.urlparse(str(location))
origin_protocol, origin_host, origin_port = (
parsed.scheme,
parsed.hostname,
parsed.port,
)
# The protocol to use to see if the protocol matches.
# Don't count the repository type as part of the protocol: in
# cases such as "git+ssh", only use "ssh". (I.e., Only verify against
# the last scheme.)
origin_protocol = origin_protocol.rsplit("+", 1)[-1]
# Determine if our origin is a secure origin by looking through our
# hardcoded list of secure origins, as well as any additional ones
# configured on this PackageFinder instance.
for secure_origin in self.iter_secure_origins():
secure_protocol, secure_host, secure_port = secure_origin
if origin_protocol != secure_protocol and secure_protocol != "*":
continue
try:
addr = ipaddress.ip_address(origin_host)
network = ipaddress.ip_network(secure_host)
except ValueError:
# We don't have both a valid address or a valid network, so
# we'll check this origin against hostnames.
if (
origin_host
and origin_host.lower() != secure_host.lower()
and secure_host != "*"
):
continue
else:
# We have a valid address and network, so see if the address
# is contained within the network.
if addr not in network:
continue
# Check to see if the port matches.
if (
origin_port != secure_port
and secure_port != "*"
and secure_port is not None
):
continue
# If we've gotten here, then this origin matches the current
# secure origin and we should return True
return True
# If we've gotten to this point, then the origin isn't secure and we
# will not accept it as a valid location to search. We will however
# log a warning that we are ignoring it.
logger.warning(
"The repository located at %s is not a trusted or secure host and "
"is being ignored. If this repository is available via HTTPS we "
"recommend you use HTTPS instead, otherwise you may silence "
"this warning and allow it anyway with '--trusted-host %s'.",
origin_host,
origin_host,
)
return False
def request(self, method: str, url: str, *args: Any, **kwargs: Any) -> Response:
# Allow setting a default timeout on a session
kwargs.setdefault("timeout", self.timeout)
# Dispatch the actual request
return super().request(method, url, *args, **kwargs)

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from typing import Dict, Iterator
from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
from pip._internal.exceptions import NetworkConnectionError
# The following comments and HTTP headers were originally added by
# Donald Stufft in git commit 22c562429a61bb77172039e480873fb239dd8c03.
#
# We use Accept-Encoding: identity here because requests defaults to
# accepting compressed responses. This breaks in a variety of ways
# depending on how the server is configured.
# - Some servers will notice that the file isn't a compressible file
# and will leave the file alone and with an empty Content-Encoding
# - Some servers will notice that the file is already compressed and
# will leave the file alone, adding a Content-Encoding: gzip header
# - Some servers won't notice anything at all and will take a file
# that's already been compressed and compress it again, and set
# the Content-Encoding: gzip header
# By setting this to request only the identity encoding we're hoping
# to eliminate the third case. Hopefully there does not exist a server
# which when given a file will notice it is already compressed and that
# you're not asking for a compressed file and will then decompress it
# before sending because if that's the case I don't think it'll ever be
# possible to make this work.
HEADERS: Dict[str, str] = {"Accept-Encoding": "identity"}
def raise_for_status(resp: Response) -> None:
http_error_msg = ""
if isinstance(resp.reason, bytes):
# We attempt to decode utf-8 first because some servers
# choose to localize their reason strings. If the string
# isn't utf-8, we fall back to iso-8859-1 for all other
# encodings.
try:
reason = resp.reason.decode("utf-8")
except UnicodeDecodeError:
reason = resp.reason.decode("iso-8859-1")
else:
reason = resp.reason
if 400 <= resp.status_code < 500:
http_error_msg = (
f"{resp.status_code} Client Error: {reason} for url: {resp.url}"
)
elif 500 <= resp.status_code < 600:
http_error_msg = (
f"{resp.status_code} Server Error: {reason} for url: {resp.url}"
)
if http_error_msg:
raise NetworkConnectionError(http_error_msg, response=resp)
def response_chunks(
response: Response, chunk_size: int = CONTENT_CHUNK_SIZE
) -> Iterator[bytes]:
"""Given a requests Response, provide the data chunks."""
try:
# Special case for urllib3.
for chunk in response.raw.stream(
chunk_size,
# We use decode_content=False here because we don't
# want urllib3 to mess with the raw bytes we get
# from the server. If we decompress inside of
# urllib3 then we cannot verify the checksum
# because the checksum will be of the compressed
# file. This breakage will only occur if the
# server adds a Content-Encoding header, which
# depends on how the server was configured:
# - Some servers will notice that the file isn't a
# compressible file and will leave the file alone
# and with an empty Content-Encoding
# - Some servers will notice that the file is
# already compressed and will leave the file
# alone and will add a Content-Encoding: gzip
# header
# - Some servers won't notice anything at all and
# will take a file that's already been compressed
# and compress it again and set the
# Content-Encoding: gzip header
#
# By setting this not to decode automatically we
# hope to eliminate problems with the second case.
decode_content=False,
):
yield chunk
except AttributeError:
# Standard file-like object.
while True:
chunk = response.raw.read(chunk_size)
if not chunk:
break
yield chunk

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"""xmlrpclib.Transport implementation
"""
import logging
import urllib.parse
import xmlrpc.client
from typing import TYPE_CHECKING, Tuple
from pip._internal.exceptions import NetworkConnectionError
from pip._internal.network.session import PipSession
from pip._internal.network.utils import raise_for_status
if TYPE_CHECKING:
from xmlrpc.client import _HostType, _Marshallable
logger = logging.getLogger(__name__)
class PipXmlrpcTransport(xmlrpc.client.Transport):
"""Provide a `xmlrpclib.Transport` implementation via a `PipSession`
object.
"""
def __init__(
self, index_url: str, session: PipSession, use_datetime: bool = False
) -> None:
super().__init__(use_datetime)
index_parts = urllib.parse.urlparse(index_url)
self._scheme = index_parts.scheme
self._session = session
def request(
self,
host: "_HostType",
handler: str,
request_body: bytes,
verbose: bool = False,
) -> Tuple["_Marshallable", ...]:
assert isinstance(host, str)
parts = (self._scheme, host, handler, None, None, None)
url = urllib.parse.urlunparse(parts)
try:
headers = {"Content-Type": "text/xml"}
response = self._session.post(
url,
data=request_body,
headers=headers,
stream=True,
)
raise_for_status(response)
self.verbose = verbose
return self.parse_response(response.raw)
except NetworkConnectionError as exc:
assert exc.response
logger.critical(
"HTTP error %s while getting %s",
exc.response.status_code,
url,
)
raise

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"""Metadata generation logic for source distributions.
"""
import os
from pip._vendor.pep517.wrappers import Pep517HookCaller
from pip._internal.build_env import BuildEnvironment
from pip._internal.utils.subprocess import runner_with_spinner_message
from pip._internal.utils.temp_dir import TempDirectory
def generate_metadata(build_env, backend):
# type: (BuildEnvironment, Pep517HookCaller) -> str
"""Generate metadata using mechanisms described in PEP 517.
Returns the generated metadata directory.
"""
metadata_tmpdir = TempDirectory(
kind="modern-metadata", globally_managed=True
)
metadata_dir = metadata_tmpdir.path
with build_env:
# Note that Pep517HookCaller implements a fallback for
# prepare_metadata_for_build_wheel, so we don't have to
# consider the possibility that this hook doesn't exist.
runner = runner_with_spinner_message("Preparing wheel metadata")
with backend.subprocess_runner(runner):
distinfo_dir = backend.prepare_metadata_for_build_wheel(
metadata_dir
)
return os.path.join(metadata_dir, distinfo_dir)

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"""Metadata generation logic for legacy source distributions.
"""
import logging
import os
from pip._internal.build_env import BuildEnvironment
from pip._internal.exceptions import InstallationError
from pip._internal.utils.setuptools_build import make_setuptools_egg_info_args
from pip._internal.utils.subprocess import call_subprocess
from pip._internal.utils.temp_dir import TempDirectory
logger = logging.getLogger(__name__)
def _find_egg_info(directory):
# type: (str) -> str
"""Find an .egg-info subdirectory in `directory`.
"""
filenames = [
f for f in os.listdir(directory) if f.endswith(".egg-info")
]
if not filenames:
raise InstallationError(
f"No .egg-info directory found in {directory}"
)
if len(filenames) > 1:
raise InstallationError(
"More than one .egg-info directory found in {}".format(
directory
)
)
return os.path.join(directory, filenames[0])
def generate_metadata(
build_env, # type: BuildEnvironment
setup_py_path, # type: str
source_dir, # type: str
isolated, # type: bool
details, # type: str
):
# type: (...) -> str
"""Generate metadata using setup.py-based defacto mechanisms.
Returns the generated metadata directory.
"""
logger.debug(
'Running setup.py (path:%s) egg_info for package %s',
setup_py_path, details,
)
egg_info_dir = TempDirectory(
kind="pip-egg-info", globally_managed=True
).path
args = make_setuptools_egg_info_args(
setup_py_path,
egg_info_dir=egg_info_dir,
no_user_config=isolated,
)
with build_env:
call_subprocess(
args,
cwd=source_dir,
command_desc='python setup.py egg_info',
)
# Return the .egg-info directory.
return _find_egg_info(egg_info_dir)

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import logging
import os
from typing import Optional
from pip._vendor.pep517.wrappers import Pep517HookCaller
from pip._internal.utils.subprocess import runner_with_spinner_message
logger = logging.getLogger(__name__)
def build_wheel_pep517(
name, # type: str
backend, # type: Pep517HookCaller
metadata_directory, # type: str
tempd, # type: str
):
# type: (...) -> Optional[str]
"""Build one InstallRequirement using the PEP 517 build process.
Returns path to wheel if successfully built. Otherwise, returns None.
"""
assert metadata_directory is not None
try:
logger.debug('Destination directory: %s', tempd)
runner = runner_with_spinner_message(
f'Building wheel for {name} (PEP 517)'
)
with backend.subprocess_runner(runner):
wheel_name = backend.build_wheel(
tempd,
metadata_directory=metadata_directory,
)
except Exception:
logger.error('Failed building wheel for %s', name)
return None
return os.path.join(tempd, wheel_name)

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venv/Lib/site-packages/pip/_internal/operations/build/wheel_legacy.py Normal file
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import logging
import os.path
from typing import List, Optional
from pip._internal.cli.spinners import open_spinner
from pip._internal.utils.setuptools_build import make_setuptools_bdist_wheel_args
from pip._internal.utils.subprocess import (
LOG_DIVIDER,
call_subprocess,
format_command_args,
)
logger = logging.getLogger(__name__)
def format_command_result(
command_args, # type: List[str]
command_output, # type: str
):
# type: (...) -> str
"""Format command information for logging."""
command_desc = format_command_args(command_args)
text = f'Command arguments: {command_desc}\n'
if not command_output:
text += 'Command output: None'
elif logger.getEffectiveLevel() > logging.DEBUG:
text += 'Command output: [use --verbose to show]'
else:
if not command_output.endswith('\n'):
command_output += '\n'
text += f'Command output:\n{command_output}{LOG_DIVIDER}'
return text
def get_legacy_build_wheel_path(
names, # type: List[str]
temp_dir, # type: str
name, # type: str
command_args, # type: List[str]
command_output, # type: str
):
# type: (...) -> Optional[str]
"""Return the path to the wheel in the temporary build directory."""
# Sort for determinism.
names = sorted(names)
if not names:
msg = (
'Legacy build of wheel for {!r} created no files.\n'
).format(name)
msg += format_command_result(command_args, command_output)
logger.warning(msg)
return None
if len(names) > 1:
msg = (
'Legacy build of wheel for {!r} created more than one file.\n'
'Filenames (choosing first): {}\n'
).format(name, names)
msg += format_command_result(command_args, command_output)
logger.warning(msg)
return os.path.join(temp_dir, names[0])
def build_wheel_legacy(
name, # type: str
setup_py_path, # type: str
source_dir, # type: str
global_options, # type: List[str]
build_options, # type: List[str]
tempd, # type: str
):
# type: (...) -> Optional[str]
"""Build one unpacked package using the "legacy" build process.
Returns path to wheel if successfully built. Otherwise, returns None.
"""
wheel_args = make_setuptools_bdist_wheel_args(
setup_py_path,
global_options=global_options,
build_options=build_options,
destination_dir=tempd,
)
spin_message = f'Building wheel for {name} (setup.py)'
with open_spinner(spin_message) as spinner:
logger.debug('Destination directory: %s', tempd)
try:
output = call_subprocess(
wheel_args,
cwd=source_dir,
spinner=spinner,
)
except Exception:
spinner.finish("error")
logger.error('Failed building wheel for %s', name)
return None
names = os.listdir(tempd)
wheel_path = get_legacy_build_wheel_path(
names=names,
temp_dir=tempd,
name=name,
command_args=wheel_args,
command_output=output,
)
return wheel_path

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"""Validation of dependencies of packages
"""
import logging
from typing import TYPE_CHECKING, Callable, Dict, List, NamedTuple, Optional, Set, Tuple
from pip._vendor.packaging.requirements import Requirement
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.distributions import make_distribution_for_install_requirement
from pip._internal.metadata import get_default_environment
from pip._internal.metadata.base import DistributionVersion
from pip._internal.req.req_install import InstallRequirement
if TYPE_CHECKING:
from pip._vendor.packaging.utils import NormalizedName
logger = logging.getLogger(__name__)
class PackageDetails(NamedTuple):
version: DistributionVersion
dependencies: List[Requirement]
# Shorthands
PackageSet = Dict['NormalizedName', PackageDetails]
Missing = Tuple['NormalizedName', Requirement]
Conflicting = Tuple['NormalizedName', DistributionVersion, Requirement]
MissingDict = Dict['NormalizedName', List[Missing]]
ConflictingDict = Dict['NormalizedName', List[Conflicting]]
CheckResult = Tuple[MissingDict, ConflictingDict]
ConflictDetails = Tuple[PackageSet, CheckResult]
def create_package_set_from_installed() -> Tuple[PackageSet, bool]:
"""Converts a list of distributions into a PackageSet."""
package_set = {}
problems = False
env = get_default_environment()
for dist in env.iter_installed_distributions(local_only=False, skip=()):
name = dist.canonical_name
try:
dependencies = list(dist.iter_dependencies())
package_set[name] = PackageDetails(dist.version, dependencies)
except (OSError, ValueError) as e:
# Don't crash on unreadable or broken metadata.
logger.warning("Error parsing requirements for %s: %s", name, e)
problems = True
return package_set, problems
def check_package_set(package_set, should_ignore=None):
# type: (PackageSet, Optional[Callable[[str], bool]]) -> CheckResult
"""Check if a package set is consistent
If should_ignore is passed, it should be a callable that takes a
package name and returns a boolean.
"""
missing = {}
conflicting = {}
for package_name, package_detail in package_set.items():
# Info about dependencies of package_name
missing_deps = set() # type: Set[Missing]
conflicting_deps = set() # type: Set[Conflicting]
if should_ignore and should_ignore(package_name):
continue
for req in package_detail.dependencies:
name = canonicalize_name(req.name)
# Check if it's missing
if name not in package_set:
missed = True
if req.marker is not None:
missed = req.marker.evaluate()
if missed:
missing_deps.add((name, req))
continue
# Check if there's a conflict
version = package_set[name].version
if not req.specifier.contains(version, prereleases=True):
conflicting_deps.add((name, version, req))
if missing_deps:
missing[package_name] = sorted(missing_deps, key=str)
if conflicting_deps:
conflicting[package_name] = sorted(conflicting_deps, key=str)
return missing, conflicting
def check_install_conflicts(to_install):
# type: (List[InstallRequirement]) -> ConflictDetails
"""For checking if the dependency graph would be consistent after \
installing given requirements
"""
# Start from the current state
package_set, _ = create_package_set_from_installed()
# Install packages
would_be_installed = _simulate_installation_of(to_install, package_set)
# Only warn about directly-dependent packages; create a whitelist of them
whitelist = _create_whitelist(would_be_installed, package_set)
return (
package_set,
check_package_set(
package_set, should_ignore=lambda name: name not in whitelist
)
)
def _simulate_installation_of(to_install, package_set):
# type: (List[InstallRequirement], PackageSet) -> Set[NormalizedName]
"""Computes the version of packages after installing to_install.
"""
# Keep track of packages that were installed
installed = set()
# Modify it as installing requirement_set would (assuming no errors)
for inst_req in to_install:
abstract_dist = make_distribution_for_install_requirement(inst_req)
dist = abstract_dist.get_pkg_resources_distribution()
assert dist is not None
name = canonicalize_name(dist.project_name)
package_set[name] = PackageDetails(dist.parsed_version, dist.requires())
installed.add(name)
return installed
def _create_whitelist(would_be_installed, package_set):
# type: (Set[NormalizedName], PackageSet) -> Set[NormalizedName]
packages_affected = set(would_be_installed)
for package_name in package_set:
if package_name in packages_affected:
continue
for req in package_set[package_name].dependencies:
if canonicalize_name(req.name) in packages_affected:
packages_affected.add(package_name)
break
return packages_affected

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venv/Lib/site-packages/pip/_internal/operations/freeze.py Normal file
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import collections
import logging
import os
from typing import (
Container,
Dict,
Iterable,
Iterator,
List,
NamedTuple,
Optional,
Set,
Union,
)
from pip._vendor.packaging.requirements import Requirement
from pip._vendor.packaging.utils import canonicalize_name
from pip._vendor.packaging.version import Version
from pip._internal.exceptions import BadCommand, InstallationError
from pip._internal.metadata import BaseDistribution, get_environment
from pip._internal.req.constructors import (
install_req_from_editable,
install_req_from_line,
)
from pip._internal.req.req_file import COMMENT_RE
from pip._internal.utils.direct_url_helpers import direct_url_as_pep440_direct_reference
logger = logging.getLogger(__name__)
class _EditableInfo(NamedTuple):
requirement: Optional[str]
editable: bool
comments: List[str]
def freeze(
requirement=None, # type: Optional[List[str]]
local_only=False, # type: bool
user_only=False, # type: bool
paths=None, # type: Optional[List[str]]
isolated=False, # type: bool
exclude_editable=False, # type: bool
skip=() # type: Container[str]
):
# type: (...) -> Iterator[str]
installations = {} # type: Dict[str, FrozenRequirement]
dists = get_environment(paths).iter_installed_distributions(
local_only=local_only,
skip=(),
user_only=user_only,
)
for dist in dists:
req = FrozenRequirement.from_dist(dist)
if exclude_editable and req.editable:
continue
installations[req.canonical_name] = req
if requirement:
# the options that don't get turned into an InstallRequirement
# should only be emitted once, even if the same option is in multiple
# requirements files, so we need to keep track of what has been emitted
# so that we don't emit it again if it's seen again
emitted_options = set() # type: Set[str]
# keep track of which files a requirement is in so that we can
# give an accurate warning if a requirement appears multiple times.
req_files = collections.defaultdict(list) # type: Dict[str, List[str]]
for req_file_path in requirement:
with open(req_file_path) as req_file:
for line in req_file:
if (not line.strip() or
line.strip().startswith('#') or
line.startswith((
'-r', '--requirement',
'-f', '--find-links',
'-i', '--index-url',
'--pre',
'--trusted-host',
'--process-dependency-links',
'--extra-index-url',
'--use-feature'))):
line = line.rstrip()
if line not in emitted_options:
emitted_options.add(line)
yield line
continue
if line.startswith('-e') or line.startswith('--editable'):
if line.startswith('-e'):
line = line[2:].strip()
else:
line = line[len('--editable'):].strip().lstrip('=')
line_req = install_req_from_editable(
line,
isolated=isolated,
)
else:
line_req = install_req_from_line(
COMMENT_RE.sub('', line).strip(),
isolated=isolated,
)
if not line_req.name:
logger.info(
"Skipping line in requirement file [%s] because "
"it's not clear what it would install: %s",
req_file_path, line.strip(),
)
logger.info(
" (add #egg=PackageName to the URL to avoid"
" this warning)"
)
else:
line_req_canonical_name = canonicalize_name(
line_req.name)
if line_req_canonical_name not in installations:
# either it's not installed, or it is installed
# but has been processed already
if not req_files[line_req.name]:
logger.warning(
"Requirement file [%s] contains %s, but "
"package %r is not installed",
req_file_path,
COMMENT_RE.sub('', line).strip(),
line_req.name
)
else:
req_files[line_req.name].append(req_file_path)
else:
yield str(installations[
line_req_canonical_name]).rstrip()
del installations[line_req_canonical_name]
req_files[line_req.name].append(req_file_path)
# Warn about requirements that were included multiple times (in a
# single requirements file or in different requirements files).
for name, files in req_files.items():
if len(files) > 1:
logger.warning("Requirement %s included multiple times [%s]",
name, ', '.join(sorted(set(files))))
yield(
'## The following requirements were added by '
'pip freeze:'
)
for installation in sorted(
installations.values(), key=lambda x: x.name.lower()):
if installation.canonical_name not in skip:
yield str(installation).rstrip()
def _format_as_name_version(dist: BaseDistribution) -> str:
if isinstance(dist.version, Version):
return f"{dist.raw_name}=={dist.version}"
return f"{dist.raw_name}==={dist.version}"
def _get_editable_info(dist: BaseDistribution) -> _EditableInfo:
"""
Compute and return values (req, editable, comments) for use in
FrozenRequirement.from_dist().
"""
if not dist.editable:
return _EditableInfo(requirement=None, editable=False, comments=[])
if dist.location is None:
display = _format_as_name_version(dist)
logger.warning("Editable requirement not found on disk: %s", display)
return _EditableInfo(
requirement=None,
editable=True,
comments=[f"# Editable install not found ({display})"],
)
location = os.path.normcase(os.path.abspath(dist.location))
from pip._internal.vcs import RemoteNotFoundError, RemoteNotValidError, vcs
vcs_backend = vcs.get_backend_for_dir(location)
if vcs_backend is None:
display = _format_as_name_version(dist)
logger.debug(
'No VCS found for editable requirement "%s" in: %r', display,
location,
)
return _EditableInfo(
requirement=location,
editable=True,
comments=[f'# Editable install with no version control ({display})'],
)
vcs_name = type(vcs_backend).__name__
try:
req = vcs_backend.get_src_requirement(location, dist.raw_name)
except RemoteNotFoundError:
display = _format_as_name_version(dist)
return _EditableInfo(
requirement=location,
editable=True,
comments=[f'# Editable {vcs_name} install with no remote ({display})'],
)
except RemoteNotValidError as ex:
display = _format_as_name_version(dist)
return _EditableInfo(
requirement=location,
editable=True,
comments=[
f"# Editable {vcs_name} install ({display}) with either a deleted "
f"local remote or invalid URI:",
f"# '{ex.url}'",
],
)
except BadCommand:
logger.warning(
'cannot determine version of editable source in %s '
'(%s command not found in path)',
location,
vcs_backend.name,
)
return _EditableInfo(requirement=None, editable=True, comments=[])
except InstallationError as exc:
logger.warning(
"Error when trying to get requirement for VCS system %s, "
"falling back to uneditable format", exc
)
else:
return _EditableInfo(requirement=req, editable=True, comments=[])
logger.warning('Could not determine repository location of %s', location)
return _EditableInfo(
requirement=None,
editable=False,
comments=['## !! Could not determine repository location'],
)
class FrozenRequirement:
def __init__(self, name, req, editable, comments=()):
# type: (str, Union[str, Requirement], bool, Iterable[str]) -> None
self.name = name
self.canonical_name = canonicalize_name(name)
self.req = req
self.editable = editable
self.comments = comments
@classmethod
def from_dist(cls, dist: BaseDistribution) -> "FrozenRequirement":
# TODO `get_requirement_info` is taking care of editable requirements.
# TODO This should be refactored when we will add detection of
# editable that provide .dist-info metadata.
req, editable, comments = _get_editable_info(dist)
if req is None and not editable:
# if PEP 610 metadata is present, attempt to use it
direct_url = dist.direct_url
if direct_url:
req = direct_url_as_pep440_direct_reference(
direct_url, dist.raw_name
)
comments = []
if req is None:
# name==version requirement
req = _format_as_name_version(dist)
return cls(dist.raw_name, req, editable, comments=comments)
def __str__(self):
# type: () -> str
req = self.req
if self.editable:
req = f'-e {req}'
return '\n'.join(list(self.comments) + [str(req)]) + '\n'

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venv/Lib/site-packages/pip/_internal/operations/install/__init__.py Normal file
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"""For modules related to installing packages.
"""

47
venv/Lib/site-packages/pip/_internal/operations/install/editable_legacy.py Normal file
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"""Legacy editable installation process, i.e. `setup.py develop`.
"""
import logging
from typing import List, Optional, Sequence
from pip._internal.build_env import BuildEnvironment
from pip._internal.utils.logging import indent_log
from pip._internal.utils.setuptools_build import make_setuptools_develop_args
from pip._internal.utils.subprocess import call_subprocess
logger = logging.getLogger(__name__)
def install_editable(
install_options, # type: List[str]
global_options, # type: Sequence[str]
prefix, # type: Optional[str]
home, # type: Optional[str]
use_user_site, # type: bool
name, # type: str
setup_py_path, # type: str
isolated, # type: bool
build_env, # type: BuildEnvironment
unpacked_source_directory, # type: str
):
# type: (...) -> None
"""Install a package in editable mode. Most arguments are pass-through
to setuptools.
"""
logger.info('Running setup.py develop for %s', name)
args = make_setuptools_develop_args(
setup_py_path,
global_options=global_options,
install_options=install_options,
no_user_config=isolated,
prefix=prefix,
home=home,
use_user_site=use_user_site,
)
with indent_log():
with build_env:
call_subprocess(
args,
cwd=unpacked_source_directory,
)

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"""Legacy installation process, i.e. `setup.py install`.
"""
import logging
import os
import sys
from distutils.util import change_root
from typing import List, Optional, Sequence
from pip._internal.build_env import BuildEnvironment
from pip._internal.exceptions import InstallationError
from pip._internal.models.scheme import Scheme
from pip._internal.utils.logging import indent_log
from pip._internal.utils.misc import ensure_dir
from pip._internal.utils.setuptools_build import make_setuptools_install_args
from pip._internal.utils.subprocess import runner_with_spinner_message
from pip._internal.utils.temp_dir import TempDirectory
logger = logging.getLogger(__name__)
class LegacyInstallFailure(Exception):
def __init__(self):
# type: () -> None
self.parent = sys.exc_info()
def write_installed_files_from_setuptools_record(
record_lines: List[str],
root: Optional[str],
req_description: str,
) -> None:
def prepend_root(path):
# type: (str) -> str
if root is None or not os.path.isabs(path):
return path
else:
return change_root(root, path)
for line in record_lines:
directory = os.path.dirname(line)
if directory.endswith('.egg-info'):
egg_info_dir = prepend_root(directory)
break
else:
message = (
"{} did not indicate that it installed an "
".egg-info directory. Only setup.py projects "
"generating .egg-info directories are supported."
).format(req_description)
raise InstallationError(message)
new_lines = []
for line in record_lines:
filename = line.strip()
if os.path.isdir(filename):
filename += os.path.sep
new_lines.append(
os.path.relpath(prepend_root(filename), egg_info_dir)
)
new_lines.sort()
ensure_dir(egg_info_dir)
inst_files_path = os.path.join(egg_info_dir, 'installed-files.txt')
with open(inst_files_path, 'w') as f:
f.write('\n'.join(new_lines) + '\n')
def install(
install_options, # type: List[str]
global_options, # type: Sequence[str]
root, # type: Optional[str]
home, # type: Optional[str]
prefix, # type: Optional[str]
use_user_site, # type: bool
pycompile, # type: bool
scheme, # type: Scheme
setup_py_path, # type: str
isolated, # type: bool
req_name, # type: str
build_env, # type: BuildEnvironment
unpacked_source_directory, # type: str
req_description, # type: str
):
# type: (...) -> bool
header_dir = scheme.headers
with TempDirectory(kind="record") as temp_dir:
try:
record_filename = os.path.join(temp_dir.path, 'install-record.txt')
install_args = make_setuptools_install_args(
setup_py_path,
global_options=global_options,
install_options=install_options,
record_filename=record_filename,
root=root,
prefix=prefix,
header_dir=header_dir,
home=home,
use_user_site=use_user_site,
no_user_config=isolated,
pycompile=pycompile,
)
runner = runner_with_spinner_message(
f"Running setup.py install for {req_name}"
)
with indent_log(), build_env:
runner(
cmd=install_args,
cwd=unpacked_source_directory,
)
if not os.path.exists(record_filename):
logger.debug('Record file %s not found', record_filename)
# Signal to the caller that we didn't install the new package
return False
except Exception:
# Signal to the caller that we didn't install the new package
raise LegacyInstallFailure
# At this point, we have successfully installed the requirement.
# We intentionally do not use any encoding to read the file because
# setuptools writes the file using distutils.file_util.write_file,
# which does not specify an encoding.
with open(record_filename) as f:
record_lines = f.read().splitlines()
write_installed_files_from_setuptools_record(record_lines, root, req_description)
return True

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