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# Prepare your environment.
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Download the latest version of python and Microsoft c++ redistributable
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* [Microsoft C++ redistributable ](https://www.microsoft.com/en-ca/download/details.aspx?id=48145 )
* [Python environment ](https://www.python.org/downloads/ )
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# Get the code.
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1. First thing you will need is an editor for your source code, that's a personal choice, but we would like to recommend PyCharm community edition, an excellent open-source python editor.
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[PyCharm Community edition ](https://www.jetbrains.com/pycharm/download/download-thanks.html?platform=windows&code=PCC )
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2. Run the installer, and follow the installation instructions for PyCharm, you may change a few options, but the default ones should be fine.
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3. Open PyCharm and click on ** "Get from Version Control"**.
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
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4. Select Git as the version control and set the URL to [libs repository ](https://binarycat.org/git/Guille/libs.git ) as shown in the picture.
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
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You may need to install Git, by clicking at ** *Download and install***.
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5. Click Clone to download CERC libs source code.

you will end with a project like this.
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# Configure PyCharm.
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We use two spaces as a tab instead of standard [pep8 ](https://www.python.org/dev/peps/pep-0008/ ) four spaces indentation.
This option could be configured in PyCharm at the settings screen, as shown in the picture.
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
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# Start your project.
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1. Click on file new project like in the image.
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
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2. Go to project settings and add the libs project to your own, as shown in the picture.
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
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3. Add your first file to your project and click in install requirements to automatically download all the dependencies.
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4. When all the dependencies are satisfied, we are good to go to start importing our first model.
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by adding the following code to our main.py
```
from geometry.geometry_factory import GeometryFactory
city = GeometryFactory('citygml', 'myfile.gml').city
```