Invalid version: 'None' when re-installing/upgrading python-apt using pip when wheel module installed

[Philip Roche]

[ Impact ]

 * It is not possible to upgrade or re-install python-apt using pip from the git+ssh://git.launchpad.net/ubuntu/+source/python-apt git repo if already installed and if wheel installed too.

 * On initial install it also is assigned version `0.0.0` which is incorrect

 * This applies to the Mantic, Jammy and earlier versions. It has been fixed in Noble

[ Test Plan ]

 * Attempt re-install of python-apt

[ Where problems could occur ]

 * Being unable to install python-apt

 * Being unable to upgrade python-apt

 * Being unable to re-install python-apt

[ Other Info ]

 * This been resolved upstream @ https://salsa.debian.org/apt-team/python-apt/-/commit/765772fad2d3611b952b6ad416c6b765739a902a and in `2.4.y` branch @ https://salsa.debian.org/apt-team/python-apt/-/tree/2.4.y?ref_type=heads

 * You can workaround this too by setting environment variable `DEBVER=2.4.11`

 * Reproducer

```
❯ python3 -m venv venv
❯ source venv/bin/activate
❯ python3 -m pip list
Package Version
---------- -------
pip 23.2
setuptools 68.1.2
❯ python3 -m pip install --upgrade git+ssh://git.launchpad.net/ubuntu/+source/python-apt@ubuntu/jammy-updates
Collecting git+ssh://git.launchpad.net/ubuntu/+source/python-apt@ubuntu/jammy-updates
  Cloning ssh://git.launchpad.net/ubuntu/+source/python-apt (to revision ubuntu/jammy-updates) to ./pip-req-build-t7t8vnsu
  Running command git clone --filter=blob:none --quiet ssh://git.launchpad.net/ubuntu/+source/python-apt /tmp/pip-req-build-t7t8vnsu
  warning: filtering not recognized by server, ignoring
  warning: filtering not recognized by server, ignoring
  Running command git checkout -b ubuntu/jammy-updates --track origin/ubuntu/jammy-updates
  Switched to a new branch 'ubuntu/jammy-updates'
  branch 'ubuntu/jammy-updates' set up to track 'origin/ubuntu/jammy-updates'.
  Resolved ssh://git.launchpad.net/ubuntu/+source/python-apt to commit f043e6bd4d2842d6693d48e0c68c7a63bd3be9ac
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: python-apt
  Building wheel for python-apt (pyproject.toml) ... done
  Created wheel for python-apt: filename=python_apt-0.0.0-cp311-cp311-linux_x86_64.whl size=1808770 sha256=472ff7d9bcdad50912dc42499d68bc5e958b9843c355c157ccf920021728c205
  Stored in directory: /tmp/pip-ephem-wheel-cache-nyc3gs5x/wheels/c7/db/d7/21a72eaa5719ab3ab1ca242d5d0e08aca4aa67eaddb3c9b8fa
Successfully built python-apt
Installing collected packages: python-apt
Successfully installed python-apt-0.0.0
❯ python3 -m pip list
Package Version
---------- -------
pip 23.2
python-apt 0.0.0
setuptools 68.1.2
# install wheel
❯ python3 -m pip install wheel
Collecting wheel
  Obtaining dependency information for wheel from https://files.pythonhosted.org/packages/c7/c3/55076fc728723ef927521abaa1955213d094933dc36d4a2008d5101e1af5/wheel-0.42.0-py3-none-any.whl.metadata
  Using cached wheel-0.42.0-py3-none-any.whl.metadata (2.2 kB)
Using cached wheel-0.42.0-py3-none-any.whl (65 kB)
Installing collected packages: wheel
Successfully installed wheel-0.42.0
❯ python3 -m pip list
Package Version
---------- -------
pip 23.2
python-apt 0.0.0
setuptools 68.1.2
wheel 0.42.0
# Now try re-install
❯ python3 -m pip install --upgrade git+ssh://git.launchpad.net/ubuntu/+source/python-apt@ubuntu/jammy-updates
Collecting git+ssh://git.launchpad.net/ubuntu/+source/python-apt@ubuntu/jammy-updates
  Cloning ssh://git.launchpad.net/ubuntu/+source/python-apt (to revision ubuntu/jammy-updates) to ./pip-req-build-lk856i6s
  Running command git clone --filter=blob:none --quiet ssh://git.launchpad.net/ubuntu/+source/python-apt /tmp/pip-req-build-lk856i6s
  warning: filtering not recognized by server, ignoring
  warning: filtering not recognized by server, ignoring
  Running command git checkout -b ubuntu/jammy-updates --track origin/ubuntu/jammy-updates
  Switched to a new branch 'ubuntu/jammy-updates'
  branch 'ubuntu/jammy-updates' set up to track 'origin/ubuntu/jammy-updates'.
  Resolved ssh://git.launchpad.net/ubuntu/+source/python-apt to commit f043e6bd4d2842d6693d48e0c68c7a63bd3be9ac
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [34 lines of output]
      Traceback (most recent call last):
        File "/tmp/venv/lib/python3.11/site-packages/setuptools/_normalization.py", line 59, in safe_version
          return str(packaging.version.Version(v))
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/venv/lib/python3.11/site-packages/setuptools/_vendor/packaging/version.py", line 198, in __init__
          raise InvalidVersion(f"Invalid version: '{version}'")
      setuptools.extern.packaging.version.InvalidVersion: Invalid version: 'None'

      During handling of the above exception, another exception occurred:

      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "/tmp/pip-req-build-lk856i6s/setup.py", line 100, in <module>
          setup(name="python-apt",
        File "/tmp/venv/lib/python3.11/site-packages/setuptools/__init__.py", line 107, in setup
          return distutils.core.setup(**attrs)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/venv/lib/python3.11/site-packages/setuptools/_distutils/core.py", line 147, in setup
          _setup_distribution = dist = klass(attrs)
                                       ^^^^^^^^^^^^
        File "/tmp/venv/lib/python3.11/site-packages/setuptools/dist.py", line 480, in __init__
          self.patch_missing_pkg_info(attrs)
        File "/tmp/venv/lib/python3.11/site-packages/setuptools/dist.py", line 469, in patch_missing_pkg_info
          dist._version = _normalization.safe_version(str(attrs['version']))
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/venv/lib/python3.11/site-packages/setuptools/_normalization.py", line 62, in safe_version
          return str(packaging.version.Version(attempt))
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/venv/lib/python3.11/site-packages/setuptools/_vendor/packaging/version.py", line 198, in __init__
          raise InvalidVersion(f"Invalid version: '{version}'")
      setuptools.extern.packaging.version.InvalidVersion: Invalid version: 'None'
      W: [python3.1] DistUtilsExtra import error.
      W: [python3.1] Sphinx import error.
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

# Now install the upstream version with the fix
❯ python3 -m pip install --upgrade git+https://salsa.debian.org/apt-team/python-apt.git@2.4.y
Collecting git+https://salsa.debian.org/apt-team/python-apt.git@2.4.y
  Cloning https://salsa.debian.org/apt-team/python-apt.git (to revision 2.4.y) to ./pip-req-build-3685qq5l
  Running command git clone --filter=blob:none --quiet https://salsa.debian.org/apt-team/python-apt.git /tmp/pip-req-build-3685qq5l
  Running command git checkout -b 2.4.y --track origin/2.4.y
  Switched to a new branch '2.4.y'
  branch '2.4.y' set up to track 'origin/2.4.y'.
  Resolved https://salsa.debian.org/apt-team/python-apt.git to commit 765772fad2d3611b952b6ad416c6b765739a902a
  Preparing metadata (setup.py) ... done
Building wheels for collected packages: python-apt
  Building wheel for python-apt (setup.py) ... done
  Created wheel for python-apt: filename=python_apt-2.4.0-cp311-cp311-linux_x86_64.whl size=1808869 sha256=88a68a971f2906fb164d899e3a656f96c13b411e1c4817b8124570c8d7d8f8b6
  Stored in directory: /tmp/pip-ephem-wheel-cache-s8hfqwli/wheels/be/db/74/811f602d86304cd1d663bb8d2fac0576098fb5c1f1fcc574f5
Successfully built python-apt
Installing collected packages: python-apt
  Attempting uninstall: python-apt
    Found existing installation: python-apt 0.0.0
    Uninstalling python-apt-0.0.0:
      Successfully uninstalled python-apt-0.0.0
Successfully installed python-apt-2.4.0

# Now remove wheel
❯ python3 -m pip uninstall -y wheel
Found existing installation: wheel 0.42.0
Uninstalling wheel-0.42.0:
  Successfully uninstalled wheel-0.42.0

# Try re-install again without wheel present in virtual env
❯ python3 -m pip install --upgrade git+ssh://git.launchpad.net/ubuntu/+source/python-apt@ubuntu/jammy-updates
Collecting git+ssh://git.launchpad.net/ubuntu/+source/python-apt@ubuntu/jammy-updates
  Cloning ssh://git.launchpad.net/ubuntu/+source/python-apt (to revision ubuntu/jammy-updates) to ./pip-req-build-x6s9fyhw
  Running command git clone --filter=blob:none --quiet ssh://git.launchpad.net/ubuntu/+source/python-apt /tmp/pip-req-build-x6s9fyhw
  warning: filtering not recognized by server, ignoring
  warning: filtering not recognized by server, ignoring
  Running command git checkout -b ubuntu/jammy-updates --track origin/ubuntu/jammy-updates
  Switched to a new branch 'ubuntu/jammy-updates'
  branch 'ubuntu/jammy-updates' set up to track 'origin/ubuntu/jammy-updates'.
  Resolved ssh://git.launchpad.net/ubuntu/+source/python-apt to commit f043e6bd4d2842d6693d48e0c68c7a63bd3be9ac
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: python-apt
  Building wheel for python-apt (pyproject.toml) ... done
  Created wheel for python-apt: filename=python_apt-0.0.0-cp311-cp311-linux_x86_64.whl size=1808761 sha256=930dc876f56792a798aabcee00ca2760a6ea0b1bffe47e5d9edfa1fa03ed4c0e
  Stored in directory: /tmp/pip-ephem-wheel-cache-98tkauq_/wheels/c7/db/d7/21a72eaa5719ab3ab1ca242d5d0e08aca4aa67eaddb3c9b8fa
Successfully built python-apt
Installing collected packages: python-apt
  Attempting uninstall: python-apt
    Found existing installation: python-apt 2.4.0
    Uninstalling python-apt-2.4.0:
      Successfully uninstalled python-apt-2.4.0
Successfully installed python-apt-0.0.0

```