New submission from Serhiy Storchaka <storchaka+cpyt...@gmail.com>:
The C function that implements _xxsubinterpreters.channel_close() is defined
with the signature
PyObject *channel_close(PyObject *self, PyObject *args, PyObject *kwds)
which corresponds the method convention METH_VARARGS | METH_KEYWORDS, but is
used with the incompatible method convention METH_VARARGS. Either the signature
or flags are not correct.
Actually it can use just METH_O. The proposed PR changes both signature and
flags and simplifies the implementation.
The bug was found thanks to gcc 8 emitting a warning for invalid function cast
(it also emits a lot of false alarms). See also issue33012.
----------
components: Extension Modules
messages: 316354
nosy: eric.snow, serhiy.storchaka, siddhesh
priority: normal
severity: normal
status: open
title: Mismatched C function signature in _xxsubinterpreters.channel_close()
type: behavior
versions: Python 3.7, Python 3.8
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue33454>
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