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Automatic installation of Python dependencies with CMake

I had a quick glance, but due to the terminology, like dependencies and packages being used in different ways, it is rather difficult to find an answer.

I am creating a mixed language source (Fortran, some C and Python) and Fortran calls a Python script that depends on the networkx

Python package in PyPI. Usually, I just installed networkx

, so this is not a problem for me when restoring.

However, for distribution, I want the best possible way:

  • Install pip

    or its equivalent if not installed.
  • Maybe install virtualenv

    and create a virtual environment if needed.
  • Download and install networkx

    using the --user

    c option pip

    .

Is there a standard way? Or should I just use CMake dependencies with custom commands that install pip

, etc.?

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it depends. for a "manual" installation, you should definitely determine if all the necessary (for building) tools are installed and throw an error if they do not. then use execute_process()

to launch pip

and whatever you want. on the other hand, if you are going to build a real package for a specific Linux, you just package your binaries and require (with the appropriate syntax of a specific package format such as *.rpm

or *.deb

that your package depends on some other packages. so you can be sure that they will be installed via w / (or even before) your package.



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