Crash 'FunctionDef' object has no attribute 'ancestors'

[carygravel]

Bug description

When parsing the following file:

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"Scan dialog"

from gi.repository import GObject

class Scan():
    "Scan dialog"

    _device_list = []

    @GObject.Property(
        type=object, nick="Device list", blurb="Array of hashes of available devices"
    )
    def device_list(self):
        "getter for device_list attribute"
        return self._device_list

    @device_list.setter
    def device_list(self, newval):
        self._device_list = newval

    def set_device(self, device):
        "set the active device"
        if len(self.device_list):
            pass



pylint crashed with a ``AttributeError`` and with the following stacktrace:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pylint/lint/pylinter.py", line 1034, in _check_files
self._check_file(get_ast, check_astroid_module, file)
File "/usr/lib/python3/dist-packages/pylint/lint/pylinter.py", line 1069, in _check_file
check_astroid_module(ast_node)
File "/usr/lib/python3/dist-packages/pylint/lint/pylinter.py", line 1203, in check_astroid_module
retval = self._check_astroid_module(
File "/usr/lib/python3/dist-packages/pylint/lint/pylinter.py", line 1250, in _check_astroid_module
walker.walk(node)
File "/usr/lib/python3/dist-packages/pylint/utils/ast_walker.py", line 75, in walk
self.walk(child)
File "/usr/lib/python3/dist-packages/pylint/utils/ast_walker.py", line 75, in walk
self.walk(child)
File "/usr/lib/python3/dist-packages/pylint/utils/ast_walker.py", line 75, in walk
self.walk(child)
[Previous line repeated 1 more time]
File "/usr/lib/python3/dist-packages/pylint/utils/ast_walker.py", line 72, in walk
callback(astroid)
File "/usr/lib/python3/dist-packages/pylint/checkers/refactoring/implicit_booleaness_checker.py", line 110, in visit_call
mother_classes = self.base_classes_of_node(instance)
File "/usr/lib/python3/dist-packages/pylint/checkers/refactoring/implicit_booleaness_checker.py", line 214, in base_classes_of_node
return [instance.name] + [x.name for x in instance.ancestors()]
File "/usr/lib/python3/dist-packages/astroid/bases.py", line 134, in getattr
return getattr(self._proxied, name)
File "/usr/lib/python3/dist-packages/astroid/bases.py", line 134, in getattr
return getattr(self._proxied, name)
AttributeError: 'FunctionDef' object has no attribute 'ancestors'

Configuration

No response

Command used

pylint bug.py

Pylint output

Exception on node <Call l.23 at 0x7fa058782fb0> in file 'bug.py'
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pylint/utils/ast_walker.py", line 72, in walk
    callback(astroid)
  File "/usr/lib/python3/dist-packages/pylint/checkers/refactoring/implicit_booleaness_checker.py", line 110, in visit_call
    mother_classes = self.base_classes_of_node(instance)
  File "/usr/lib/python3/dist-packages/pylint/checkers/refactoring/implicit_booleaness_checker.py", line 214, in base_classes_of_node
    return [instance.name] + [x.name for x in instance.ancestors()]
  File "/usr/lib/python3/dist-packages/astroid/bases.py", line 134, in __getattr__
    return getattr(self._proxied, name)
  File "/usr/lib/python3/dist-packages/astroid/bases.py", line 134, in __getattr__
    return getattr(self._proxied, name)
AttributeError: 'FunctionDef' object has no attribute 'ancestors'

Expected behavior

I would expect no crash

Pylint version

pylint 2.12.2
astroid 2.9.3
Python 3.10.12 (main, Nov 20 2023, 15:14:05) [GCC 11.4.0]

OS / Environment

Linux Mint 21.3 Virginia
base: Ubuntu 22.04 jammy

Additional dependencies

cffi==1.16.0
charset-normalizer==3.3.2
coverage==7.3.2
cryptography==41.0.5
Deprecated==1.2.14
deprecation==2.1.0
exceptiongroup==1.2.0
img2pdf==0.5.1
iniconfig==2.0.0
lxml==4.9.3
markdown-it-py==3.0.0
mdurl==0.1.2
ocrmypdf==15.4.3
packaging==23.2
pdfminer.six==20221105
pikepdf==8.7.1
Pillow==10.1.0
pluggy==1.3.0
pycairo==1.25.1
pycparser==2.21
Pygments==2.17.2
PyGObject==3.46.0
pytest==7.4.3
pytest-cov==4.1.0
pytest-timeout==2.2.0
pytest-xvfb==3.0.0
python-sane==2.9.1
PyVirtualDisplay==3.0
reportlab==4.0.7
rich==13.7.0
tesserocr==2.6.2
tomli==2.0.1
wrapt==1.16.0

[jacobtylerwalls]

Feel free to reopen if you can reproduce on a recent version of pylint.

[jacobtylerwalls]

Likely duplicate of #5646

[carygravel]

Apologies for the noise. Confirmed fixed in v3.1.0.