Hi Simon (2022.09.07_00:26:25_+0200) > pip installs the dependencies into /tmp/pip-build-env-XXXXXXXX/overlay, > with the Python code in > /tmp/pip-build-env-XXXXXXXX/overlay/local/lib/python3.10/dist-packages > and the executables in /tmp/pip-build-env-XXXXXXXX/overlay/local/bin/:
My initial triage of this is that pip is calling a sub-pip with --prefix in src/pip/_vendor/pep517/envbuild.py That will use the posix_local scheme by default on Debian, which won't do what pip expects, when it assumes the posix_prefix scheme to be used. Probably selecting having pip explicitly select posix_prefix when --prefix is supplied would make sense. I don't know what the pip upstream will think about having to do that... SR -- Stefano Rivera http://tumbleweed.org.za/ +1 415 683 3272
