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No exception set but raise SystemError when setting _fields_ of ctypes.Structure in __init_subclass__ #99275
Description
Bug report
No exception set but raise SystemError when setting _fields_ of ctypes.Structure in __init_subclass__
Reproduce code:
import ctypes
class ParentStructure(ctypes.Structure):
def __init_subclass__(cls, **kwargs):
cls._fields_ =[('v1',ctypes.c_uint),('v2',ctypes.c_uint),]
super().__init_subclass__(**kwargs)
class ChildStructure(ParentStructure):
pass
Output Exception
Traceback (most recent call last):
File "D:\Projects\pythonProject\main.py", line 10, in <module>
class ChildStructure(ParentStructure):
File "D:\Projects\pythonProject\main.py", line 6, in __init_subclass__
cls._fields_ =[('v1',ctypes.c_uint),('v2',ctypes.c_uint),]
SystemError: error return without exception set
Your environment
Python 3.10.6 (tags/v3.10.6:9c7b4bd, Aug 1 2022, 21:53:49) [MSC v.1932 64 bit (AMD64)] on win32
Activity
pythongh-99275: Fix `SystemError` in `ctypes` during `__initsubclass__`
sobolevn commentedon Nov 9, 2022
I proposed a PR that sets the exception.
pythongh-99275: [ctypes] remove `_use_broken_old_ctypes_structure_sem…
pythongh-99275: [ctypes] remove `_use_broken_old_ctypes_structure_sem…
pythongh-99275: [ctypes] remove `_use_broken_old_ctypes_structure_sem…
gh-99275: Fix `SystemError` in `ctypes` during `__initsubclass__` (#9…
pythongh-99275: Fix `SystemError` in `ctypes` during `__initsubclass_…
pythongh-99275: Fix `SystemError` in `ctypes` during `__initsubclass_…
gh-99275: Fix `SystemError` in `ctypes` during `__initsubclass__` (GH…
gh-99275: Fix `SystemError` in `ctypes` during `__initsubclass__` (GH…
encukou commentedon Sep 18, 2024
Thanks for the fix! I'll close the issue.