Raymond Hettinger <[email protected]> added the comment:
It looks like the error is in inspect.formatannotation().
For instances of type, that function incorrectly returns only
annotation.__qualname__.
Instead, it should return repr(annotation) which would include the args.
=================================================================
def formatannotation(annotation, base_module=None):
if getattr(annotation, '__module__', None) == 'typing':
return repr(annotation).replace('typing.', '')
if isinstance(annotation, type): # <== Erroneous case
if annotation.__module__ in ('builtins', base_module):
return annotation.__qualname__
return annotation.__module__+'.'+annotation.__qualname__
return repr(annotation)
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Python tracker <[email protected]>
<https://bugs.python.org/issue45438>
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