py-pylint: "The 'astroid<=2.14.0-dev0,>=2.12.13' distribution was not found and is required by pylint"

[mf2k (Frank Schima)]

When installed py310-spyder does not run.

$ spyder
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 629, in _build_master
    ws.require(__requires__)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 966, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 827, in resolve
    dist = self._resolve_dist(
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 873, in _resolve_dist
    raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.ContextualVersionConflict: (astroid 2.15.5 (/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages), Requirement.parse('astroid<=2.14.0-dev0,>=2.12.13'), {'pylint'})

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/local/bin/spyder", line 33, in <module>
    sys.exit(load_entry_point('spyder==5.4.3', 'gui_scripts', 'spyder')())
  File "/opt/local/bin/spyder", line 25, in importlib_load_entry_point
    return next(matches).load()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/importlib/metadata/__init__.py", line 171, in load
    module = import_module(match.group('module'))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/spyder/app/start.py", line 62, in <module>
    from spyder.utils.external import lockfile
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/spyder/utils/external/lockfile.py", line 31, in <module>
    from spyder.utils.programs import is_spyder_process
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/spyder/utils/programs.py", line 27, in <module>
    import pkg_resources
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 3327, in <module>
    def _initialize_master_working_set():
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 3301, in _call_aside
    f(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 3339, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 631, in _build_master
    return cls._build_from_requirements(__requires__)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 644, in _build_from_requirements
    dists = ws.resolve(reqs, Environment())
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 827, in resolve
    dist = self._resolve_dist(
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/pkg_resources/__init__.py", line 868, in _resolve_dist
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'astroid<=2.14.0-dev0,>=2.12.13' distribution was not found and is required by pylint

Downgrading py310-astroid fixes the problem.

$ port installed py310-astroid
The following ports are currently installed:
  py310-astroid @2.13.3_0 (active)
  py310-astroid @2.15.5_0

$ port installed py310-spyder
The following ports are currently installed:
  py310-spyder @5.4.3_0 (active)

[reneeotten (Renee Otten)]

as is clear from the Traceback, this is not an issue with Spyder but instead an incompatibility between the versions of py-astroid and py-pylint that are currently provided by MacPorts.

[reneeotten (Renee Otten)]

most likely updating py-pylint to its latest upstream version py-pylint seems to have been updated (port version: 2.15.9, new version: 2.17.4) would resolve that problem, but might then break Spyder because of its annoyingly restrictive versioning caps. I might be able to take a look at this at some point, but not likely in the near future.

[reneeotten (Renee Otten)]

In 21d9b2532bc2462cfd4f55c66879b50c22865e1e/macports-ports (master):

py-pylint: update to 2.17.4

Closes: #67743