Installing as a system package

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Section H.1 Installing as a system package

For many operating systems, one may install the liblouis Python bindings as a system package. For instance, on Debain/Ubuntu systems and Windows Subsystem for Linux, run

# sudo apt install python3-louis

and on Mac

# brew install liblouis

To test the bindings, the following should complete successfully in a Python interpreter

>>> import louis

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If you are following best practices by using a Python virtual environment for your PreTeXt project, you will need to give the environment access to system packages since liblouis is now installed as a system package. You can do this when creating the virtual environment using

# python3 -m venv /path/to/venv --system-site-packages

If you have an existing virtual environment configured for your PreTeXt project, you may alternatively edit one line in the file pyvenv.cfg in the virtual environment’s main directory:

include-system-site-packages = true

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