[Bug 258563] devel/py-qt5: missing egg-info, invisible to pip

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 17 Sep 2021 22:03:56 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=258563

            Bug ID: 258563
           Summary: devel/py-qt5: missing egg-info, invisible to pip
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: kde@FreeBSD.org
          Reporter: jamertwo@gmail.com
             Flags: maintainer-feedback?(kde@FreeBSD.org)
          Assignee: kde@FreeBSD.org

Unlike other python packages, the py38-qt5 package (and possibly the whole
devel/py-qt5 port) doesn't install egg-info or any other indication of its
existence. This causes parts of the python toolchain (such as pip) to not
recognize it as a python package, causing numerous issues.

The issue we to was that when installing a pip package dependent on PyQt5, pip
insists that it compile and install PyQt5 because it cannot find it.

Steps to reproduce:
1) Install the package with `pkg install py38-qt5`
2) Install pip with `pkg install py38-pip`
3) Try to install software depending on the PyQt5 package or the package itself
with `pip install PyQt5`

pip will now start installing build dependencies and try to build the package
from source, instead of the expected output: "Requirement already satisfied:
PyQt5 in /usr/local/lib/python3.8/site-packages (5.15.4)".

Note: The binding is still likely usable in python scripts because the metaport
also installs QtPy, which DOES specify PyQt5 as the top-level directory in its
egg-info. However, this clearly isn't sufficient.

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