How to fix python available on PATH doesn't match our installed instance on msys2?

[moi15moi]

I'm trying to use cibuildwheel to build windows wheel. I run it in msys2 because I use meson External Project module which use autotools.

I use pipx like this: pipx run cibuildwheel, but I get this error:

Error: cibuildwheel: python available on PATH doesn't match our installed instance. If you have modified PATH, ensure that you don't overwrite cibuildwheel's entry or insert python above it.

I don't understand what I might be doing wrong. Is simply cibuildwheel don't support msys2?

This is my CI file: https://github.com/moi15moi/VideoTimestamps/blob/7ec573b10fb87e96cbaa01e3d212b879a6450dff/.github/workflows/run_test.yml#L75-L99
This is the run: https://github.com/moi15moi/VideoTimestamps/actions/runs/16092068791/job/45410175369

[joerick]

Normally it's recommended to use the same c compiler that CPython used. For Windows that's MSVC. But maybe it's possible to use Msys2, I'm not sure.

But that's a very peculiar error message..! It looks to me that we're not handling the way that the msys2 python is arranging temp path names. Could be a path delimiter bug. If you were up for investigating that that would be great :)

Having said that, i don't think running cibuildwheel in msys2 Python will make any difference to the compilation one way or another. Cibuildwheel runs the compile in its own versions of CPython. So my advice, if you want to pursue msys2 more, would be to not install Python through msys2, but to install only an msys2 C toolchain and point your build backend at them somehow.

[moi15moi]

I did a quick fix to not have the error I was getting: https://github.com/moi15moi/cibuildwheel/tree/Support-msys2

Now, I get another error, but before trying to fix it, I realised that cibuildwheel was "simply" using build.

If I use python -m build in mingw64, I get this wheel videotimestamps-0.2.0-cp312-cp312-mingw_x86_64_msvcrt_gnu.whl.
If I use python -m build in ucrt64, I get this wheel videotimestamps-0.2.0-cp312-cp312-mingw_x86_64_ucrt_gnu.whl.
Those wheel are not compatible with windows, so I guess it's simply not possible to use msys2?