v2.13.x regression: Crash when inspecting PyQt5.QtWidgets due to RuntimeError during hasattr #1958
Description
Steps to reproduce
Install PyQt5, run pylint --extension-pkg-whitelist=PyQt5 x.py over a file containing from PyQt5 import QtWidgets
Current behavior
With astroid 2.12.13 and pylint 2.15.10, this works fine. With astroid 2.13.2, this happens:
Exception on node <ImportFrom l.1 at 0x7fc5a3c47d00> in file '/home/florian/tmp/pylintbug/x.py' Traceback (most recent call last): File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/pylint/utils/ast_walker.py", line 90, in walk callback(astroid) File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/pylint/checkers/variables.py", line 1726, in visit_importfrom self._check_module_attrs(node, module, name.split(".")) File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/pylint/checkers/variables.py", line 2701, in _check_module_attrs module = next(module.getattr(name)[0].infer()) File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/astroid/nodes/scoped_nodes/scoped_nodes.py", line 412, in getattr result = [self.import_module(name, relative_only=True)] File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/astroid/nodes/scoped_nodes/scoped_nodes.py", line 527, in import_module return AstroidManager().ast_from_module_name( File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/astroid/manager.py", line 205, in ast_from_module_name return self.ast_from_module(named_module, modname) File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/astroid/manager.py", line 312, in ast_from_module return AstroidBuilder(self).module_build(module, modname) File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/astroid/builder.py", line 101, in module_build node = self.inspect_build(module, modname=modname, path=path) File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/astroid/raw_building.py", line 366, in inspect_build self.object_build(node, module) File "/home/florian/tmp/pylintbug/.venv/lib/python3.10/site-packages/astroid/raw_building.py", line 422, in object_build elif hasattr(member, "__all__"): RuntimeError: wrapped C/C++ object of type QApplication has been deleted x.py:1:0: F0002: x.py: Fatal error while checking 'x.py'. Please open an issue in our bug tracker so we address this. There is a pre-filled template that you can use in '/home/florian/.cache/pylint/pylint-crash-2023-01-10-11-06-17.txt'. (astroid-error)It looks like it happens when member is QtWidgets.qApp, which is a kind of "magic" object referring to the QApplication singleton. Since none exists, it looks like PyQt doesn't like trying to access an attribute on that.
Bisected to:
It looks like 974f26f is the exact culprit.
cc @nickdrozd
(took the freedom to add appropriate labels already, hope that's fine)