CMake PythonLibs picking up wrong version

Describe the bug

When

- uses: actions/setup-python@v2
  with:
    python-version: 3.8.x
    architecture: x64

CMake seems to get the correct PythonInterp but the wrong PythonLibs. I wanted version 3.8.7 for both.

– Found PythonLibs: C:/hostedtoolcache/windows/Python/3.9.1/x64/libs/python39.lib (found suitable version “3.9.1”, minimum required is “3.0”) – Found PythonInterp: C:/hostedtoolcache/windows/Python/3.8.7/x64/python.exe (found suitable version “3.8.7”, minimum required is “3.0”)

Which version of the action are you using?

• v1
• v2
• Some other tag (such as v2.0.1 or master)

Environment

• self-hosted
• Linux
• Windows
• Mac

If applicable, please specify if you’re using a container

Python Versions Please list all of the effected versions of Python (3.8.2, etc.) 3.8 and 3.9

To Reproduce Steps to reproduce the behavior:

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4. See error

Run/Repo Url If applicable, and if your repo/run is public, please include a URL so it is easier for us to investigate.

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Additional context Add any other context about the problem here.

[vlad-nn]

@nikita-bykov, thank you so much for your help! Very appreciated.

[pjb7687]

To be clear: I am using MSYS2 shell. I solved my problem by manually adding the python executable to PATH:

export PATH=`cygpath "${pythonLocation}"`:$PATH

After that CMake finds the right one. This might not be relevant to the OP’s problem but might be helpful for others having the same issue.