[issue28739] PEP 498: docstrings as f-strings

[Martin Panter]

Martin Panter added the comment:

Actually, testing your code fragment, it seems you do get a doc string when the f-string has no substitutions in curly brackets, otherwise you don’t get any doc string. Maybe this is due to how different forms of string are compiled.

>>> class Foo:
...    f'spam'  # Compiled as plain 'spam'
... 
>>> Foo.__doc__
'spam'
>>> class Foo:
...     'spam' f'{"MMM"}'  # Compiled as f'spam{"MMM"}'
... 
>>> Foo.__doc__ is None
True

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