AttributeError: module 'aiohttp' has no attribute 'Signal'

[NaokoReeves-BO]

Describe the bug

Python 3.7.10 (default, May  5 2021, 13:11:39) 
[Clang 12.0.0 (clang-1200.0.32.29)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from aiohttp import *
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'aiohttp' has no attribute 'Signal'

To Reproduce

Python 3.7.10 (default, May  5 2021, 13:11:39) 
[Clang 12.0.0 (clang-1200.0.32.29)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from aiohttp import *
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'aiohttp' has no attribute 'Signal'

Expected behavior

No error.

Logs/tracebacks

Python 3.7.10 (default, May  5 2021, 13:11:39) 
[Clang 12.0.0 (clang-1200.0.32.29)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from aiohttp import *
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'aiohttp' has no attribute 'Signal'

Python Version

$ python --version
3.7.10

aiohttp Version

$ python -m pip show aiohttp
Name: aiohttp
Version: 3.8.0
Summary: Async http client/server framework (asyncio)
Home-page: https://github.com/aio-libs/aiohttp
Author: 
Author-email: 
License: Apache 2
Location: /Users/naoko.reeves/.pyenv/versions/3.7.10/envs/mdl-pipelines-3.7.10/lib/python3.7/site-packages
Requires: aiosignal, async-timeout, asynctest, attrs, charset-normalizer, frozenlist, multidict, typing-extensions, yarl
Required-by: pytest-aiohttp

multidict Version

$ python -m pip show multidict
Name: multidict
Version: 5.2.0
Summary: multidict implementation
Home-page: https://github.com/aio-libs/multidict
Author: Andrew Svetlov
Author-email: [email protected]
License: Apache 2
Location: /Users/naoko.reeves/.pyenv/versions/3.7.10/envs/mdl-pipelines-3.7.10/lib/python3.7/site-packages
Requires: 
Required-by: aiohttp, yarl

yarl Version

$ python -m pip show yarl
Name: yarl
Version: 1.7.0
Summary: Yet another URL library
Home-page: https://github.com/aio-libs/yarl/
Author: Andrew Svetlov
Author-email: [email protected]
License: Apache 2
Location: /Users/naoko.reeves/.pyenv/versions/3.7.10/envs/mdl-pipelines-3.7.10/lib/python3.7/site-packages
Requires: idna, multidict, typing-extensions
Required-by: aiohttp

OS

macOSX

Related component

Client

Additional context

No response

Code of Conduct

• I agree to follow the aio-libs Code of Conduct

[Dreamsorcerer]

How is this not caught by flake8...?