DeprecationWarning: pkg_resources is deprecated as an API. The 'ppa-dev-tools==0.5.0' distribution was not found

[Nathan Teodosio]

I can't get ppa commands (ppa --help gives the same error) to work anymore:

--->
% ppa wait ppa:nteodosio/ubuntu-pro; printf \\007
/usr/local/bin/ppa:4: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
  __import__('pkg_resources').run_script('ppa-dev-tools==0.5.0', 'ppa')
Traceback (most recent call last):
  File "/usr/local/bin/ppa", line 4, in <module>
    __import__('pkg_resources').run_script('ppa-dev-tools==0.5.0', 'ppa')
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3327, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3302, in _call_aside
    f(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3340, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 631, in _build_master
    ws.require(__requires__)
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 968, in require
    needed = self.resolve(parse_requirements(requirements))
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 829, in resolve
    dist = self._resolve_dist(
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 870, in _resolve_dist
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'ppa-dev-tools==0.5.0' distribution was not found and is required by the application
<---

[Bryce Harrington (bryce)]

Thanks for reporting this Nathan, I've reproduced the deprecation warnings on jammy:

$ sudo python3 ./setup.py install
/usr/lib/python3/dist-packages/pkg_resources/__init__.py:116: PkgResourcesDeprecationWarning: 1.16.0-unknown is an invalid version and will not be supported in a future release
...
/usr/lib/python3/dist-packages/setuptools/installer.py:27: SetuptoolsDeprecationWarning: setuptools.installer is deprecated. Requirements should be satisfied by a PEP 517 installer.

I've been aware of this (LP: #1989617), guess it's time to switch build systems.

[Bryce Harrington (bryce)]

This should now no longer happen with code just landed on main. If you get a chance to verify, it'd be appreciated. If there are still related problems please re-open this bug.

Thanks again for filing this!

[Nathan Teodosio (nteodosio)]

  git clone -b main https://git.launchpad.net/ppa-dev-tools
  cd ppa-dev-tools
  debuild -us -uc
  apt install ../ppa-dev-tools_0.5.0_all.deb

Now I can confirm the ppa command works, thank you!