New submission from Christian Heimes <[email protected]>:
While I was working on a patch to port wrapt to limited API and stable ABI, I
noticed a possible regression in __annotations__ PyGetSetDef. It looks like C
heap type subclasses no longer inherit the __annotations__ descriptor from a C
heap type parent class. A gdb session confirmed that 3.10 no longer calls the
WraptObjectProxy_set_annotations setter of the parent class while 3.9 does.
I had to add
{ "__annotations__", (getter)WraptObjectProxy_get_annotations,
(setter)WraptObjectProxy_set_annotations, 0},
to PyGetSetDef of the child class in order to fix the behavior. Python 3.9 and
older work as expected.
You can reproduce the behavior by disabling WRAPT_ANNOTATIONS_GETSET_WORKAROUND
and run "tox -e py310-install-extensions". The PR is
https://github.com/GrahamDumpleton/wrapt/pull/187.
----------
components: C API
keywords: 3.10regression
messages: 402855
nosy: christian.heimes, pablogsal
priority: normal
severity: normal
stage: test needed
status: open
title: Possible regression in __annotations__ descr for heap type subclasses
type: behavior
versions: Python 3.10, Python 3.11
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<https://bugs.python.org/issue45319>
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