Did your pip install fail with longintrepr.h: No such file or directory? The file likely is on your system, but it sometime or another it was moved, from /usr/include/python3.xx/longintrepr.h to /usr/include/python3.xx/cpython/longintrepr.h. The proper fix is to update the package in question with the new path, but if you’re installing an old version of something or a package that’s no longer maintained you can work around it like this:
ln -s /usr/include/python3.*/cpython/longintrepr.h .venv/include
