[Bug 271285] devel/py-virtualenv: 'make stage' fails with AttributeError

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271285

            Bug ID: 271285
           Summary: devel/py-virtualenv: 'make stage' fails with
                    AttributeError
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: nivit@FreeBSD.org
          Reporter: jcfyecrayz@liamekaens.com
          Assignee: nivit@FreeBSD.org
             Flags: maintainer-feedback?(nivit@FreeBSD.org)

'make -C devel/py-virtualenv stage' fails with 'AttributeError'...

=============
 .
 .
===>  Staging for py39-virtualenv-20.23.0
===>   py39-virtualenv-20.23.0 depends on package: py39-distlib>=0.3.6 - found
===>   py39-virtualenv-20.23.0 depends on package: py39-filelock>=3.4.1 - found
===>   py39-virtualenv-20.23.0 depends on package: py39-platformdirs>=2.4 -
found
===>   py39-virtualenv-20.23.0 depends on file: /usr/local/bin/python3.9 -
found
===>   Generating temporary packing list
/usr/local/bin/sphinx-build-3.9 -d
/z1/local/poudriere/ports/clean-git/devel/py-virtualenv/work-py39 -b html -n
/z1/local/poudriere/ports/clean-git/devel/py-virtualenv/work-py39/virtualenv-20.23.0/docs
/z1/local/poudriere/ports/clean-git/devel/py-virtualenv/work-py39/stage/usr/local/share/doc/py39-virtualenv
Running Sphinx v5.3.0
making output directory... done

Exception occurred:
  File
"/usr/local/lib/python3.9/site-packages/setuptools/_vendor/importlib_metadata/__init__.py",
line 196, in load
    return functools.reduce(getattr, attrs, module)
AttributeError: module
'virtualenv.create.via_global_ref.builtin.cpython.mac_os' has no attribute
'CPython2macOsArmFramework'
The full traceback has been saved in /tmp/sphinx-err-f4yefhrs.log, if you want
to report the issue to the developers.
Please also report this if it was a user error, so that a better error message
can be provided next time.
A bug report can be filed in the tracker at
<https://github.com/sphinx-doc/sphinx/issues>. Thanks!
*** Error code 2
=============


This happens if py39-virtualenv-20.21.1 is currently installed.


I renamed
/usr/local/lib/python3.8/site-packages/virtualenv-20.21.1.dist-info/entry_points.txt
to
/usr/local/lib/python3.8/site-packages/virtualenv-20.21.1.dist-info/entry_points.txt.mv,
and then it had no problem.  Presumably deleting py39-virtualenv-20.21.1 would
work as well.

The following also worked for me (without renaming entry_points.txt or removing
the 20.21.1 package):

env
PYTHONPATH=/usr/ports/devel/py-virtualenv/work-py39/stage/usr/local/lib/python3.9/site-packages
stage

That seems like a good thing - to have a port look in $WRKSRC first for modules
in its own build tree before looking in $LOCALBASE and using elements from a
previous install of the package.  I wish more software builds were designed to
look in the source tree first before looking outside it.  It's more correct.

I understand the urge to close this with WONTFIX, however, and instead just
tell people to build in a "clean" environment.

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