@XavierCLL Please don't do what @klaasjanelzinga suggests. Not only it's wrong place to set the XZ_OPT env.var., it also doesn't have any effect on the package build speed, because XZ is not involved since January 2020.
@klaasjanelzinga If you build packages just for yourself, you can omit package compression simply by changing the line PKGEXT='.pkg.tar.zst' (or maybe .pkg.tar.xz still in your case) to PKGEXT='.pkg.tar'.
Pinned Comments
Meaulnes commented on 2026-03-27 16:37 (UTC)
This comment from @AvacadoCookie should be pinned, IMO.
If anyone is getting errors about
Cythonorsetuptools, and they are usingConda, that comment has the answer.If anyone is getting errors about
Cythonorsetuptools, and they are usingpyenv, there are 2 possible ways to fix it:pyenv local systemto set Python back to the system installed Python for this session.pip install Cython setuptoolsto install the necessary packages to your preferred python installation.AvocadoCookie commented on 2025-12-14 16:22 (UTC)
For all users with
ModuleNotFoundError: No module named 'Cython'or'setuptools'reported, please try the following methods to address the problem:condaenvironment. Now afterwhich pythontyped in console, the output should be/usr/bin/python.pacman -S cython python-setuptools.