New submission from Jeroen Demeyer <j.deme...@ugent.be>:
The inspect functions isgeneratorfunction, iscoroutinefunction,
isasyncgenfunction can fail on methods that do not have a __code__ attribute:
>>> from types import MethodType
>>> class Callable:
... def __call__(self, *args):
... return args
>>> m = MethodType(Callable(), 42)
>>> m()
(42,)
>>> import inspect
>>> inspect.iscoroutinefunction(m)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib64/python3.6/inspect.py", line 186, in iscoroutinefunction
object.__code__.co_flags & CO_COROUTINE)
AttributeError: 'Callable' object has no attribute '__code__'
This was discovered while working on PEP 575, but it is really an independent
issue that should be fixed anyway.
----------
components: Library (Lib)
messages: 315187
nosy: jdemeyer
priority: normal
severity: normal
status: open
title: inspect.isgeneratorfunction fails on hand-created methods
type: behavior
versions: Python 3.6, Python 3.7, Python 3.8
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue33261>
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