py311-pylint @3.0.3_1: fails with astroid.exceptions.StatementMissing since py311-astroid @3.1.0_0 update

[saj (Saj Goonatilleke)]

possible regression from py-astroid: update to 3.1.0

The problem may be reproduced by invoking pylint on the following simple program.

#!/usr/bin/env python3

# pylint: disable=missing-module-docstring

if __name__ == "__main__":
    print("hello")

pylint fails with the following error message.

% pylint testprog
Exception on node <Name.__name__ l.5 at 0x106ce2d90> in file '/Users/saj/s/stash/shstash-xNs1kEr9/testprog'
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pylint/utils/ast_walker.py", line 91, in walk
    callback(astroid)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pylint/checkers/variables.py", line 1642, in visit_name
    self._loopvar_name(node)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pylint/checkers/variables.py", line 2550, in _loopvar_name
    if astmts[i].statement().parent_of(stmt) and not utils.in_for_else_branch(
       ^^^^^^^^^^^^^^^^^^^^^
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/astroid/nodes/node_ng.py", line 297, in statement
    return self.parent.statement()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/astroid/nodes/scoped_nodes/scoped_nodes.py", line 414, in statement
    raise StatementMissing(target=self)
astroid.exceptions.StatementMissing: Statement not found on <Module.testprog l.0 at 0x1060d1d10>
************* Module testprog
testprog:1:0: F0002: testprog: Fatal error while checking 'testprog'. Please open an issue in our bug tracker so we address this. There is a pre-filled template that you can use in '/Users/saj/Library/Caches/pylint/pylint-crash-2024-03-18-21-18-55.txt'. (astroid-error)

​https://github.com/pylint-dev/pylint/blob/v3.0.3/pyproject.toml#L44

dependencies    = [
    # ...
    "astroid>=3.0.1,<=3.1.0-dev0",
]

I think this is a conflict introduced by MacPorts: either pylint should be updated to 3.1.0 (probably preferable), or the bump to astroid should be reverted.

% port echo installed | grep -E 'astroid|pylint'
py311-astroid                  @3.1.0_0 
py311-pylint                   @3.0.3_1 
pylint_select                  @0.1_2

% pylint --version
pylint 3.0.3
astroid 3.1.0
Python 3.11.8 (main, Feb 10 2024, 20:48:19) [Clang 14.0.3 (clang-1403.0.22.14.1)]

Using a clone of the macports source tree, I reverted py311-astroid back to @3.0.3_0 and confirmed the problem went away.

[saj (Saj Goonatilleke)]

I don't really know what I'm doing but here is a patch if it will help. :)

​https://github.com/macports/macports-ports/pull/23087

[saj (Saj Goonatilleke)]

In e19099f447b5022102a1eca2bd7448dca3ae0525/macports-ports (master):

py-pylint: update to 3.1.0

Closes: #69533