◐ Shell
clean mode source ↗

ModuleType.__annotations__ and type.__annotations__ result in AttributeError

ndjensen

Bug report

Bug description:

If you call dir() on ModuleType or type, it shows __annotations__ as one of the attributes. However, when you attempt to access that attribute, for ModuleType you get AttributeError: type object 'module' has no attribute '__annotations__' and for type you get AttributeError: type object 'type' has no attribute '__annotations__'.

>>> from types import ModuleType
>>> dir(ModuleType)
['__annotations__', '__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getstate__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']
>>> ModuleType.__annotations__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'module' has no attribute '__annotations__'
>>> 
>>> dir(type)
['__abstractmethods__', '__annotations__', '__base__', '__bases__', '__basicsize__', '__call__', '__class__', '__delattr__', '__dict__', '__dictoffset__', '__dir__', '__doc__', '__eq__', '__flags__', '__format__', '__ge__', '__getattribute__', '__getstate__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__instancecheck__', '__itemsize__', '__le__', '__lt__', '__module__', '__mro__', '__name__', '__ne__', '__new__', '__or__', '__prepare__', '__qualname__', '__reduce__', '__reduce_ex__', '__repr__', '__ror__', '__setattr__', '__sizeof__', '__str__', '__subclasscheck__', '__subclasses__', '__subclasshook__', '__text_signature__', '__weakrefoffset__', 'mro']
>>> type.__annotations__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'type' has no attribute '__annotations__'

I found this bug because I have a method that iterates over the attributes returned from dir and gets each attribute. After upgrading from Python 3.8 to 3.11, this caused an interesting failure. I would expect that attributes returned by dir() would be accessible and not result in an AttributeError.

CPython versions tested on:

3.11, 3.13

Operating systems tested on:

Linux

Linked PRs