New submission from Matthias Braun <matthi...@fb.com>:
This is about an extension type created via `PyType_FromSpec` that overrides `tp_setattro` (minimal example attached). In this case cpython does not let me grab and use the `__setattr__` function "manually". Example: ``` >>> import demo >>> mytype_setattr = demo.MyType.__setattr__ >>> i = demo.MyType() >>> mytype_setattr(i, "foo", "bar") Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: can't apply this __setattr__ to object object ``` I suspect this is related to the loop at the beginning of typeobject.c / hackcheck() that skips over types with Py_TPFLAGS_HEAPOBJECT. (Though removing the loop breaks things like the enum module). ---------- components: C API files: demomodule.zip messages: 364123 nosy: Matthias Braun priority: normal severity: normal status: open title: Using typename.__setattr__ in extension type with Py_TPFLAGS_HEAPTYPE is broken (hackcheck too eager?) versions: Python 3.7 Added file: https://bugs.python.org/file48974/demomodule.zip _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39960> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
