structseq.c: NULL dereference in get_type_attr_as_size
Bug report
Bug description:
Parent: #146102
When PyDict_GetItemWithError returns NULL due to error (not missing key), code falls through to PyLong_AsSsize_t(NULL) at line 37 โ segfault. Affects PyStructSequence_New, structseq_new_impl, etc.
CPython versions tested on:
CPython main branch
Operating systems tested on:
No response