PEP 585 support is broken again

[Tshimanga]

Bug Report

#9873 is back.

To Reproduce

foo: list[int] = [1,2,3]

Expected Behavior

No Complaints.

Actual Behavior

error: "list" is not subscriptable, use "typing.List" instead  [misc]

Your Environment

• Mypy version used: 1.11.0
• Python version used: 3.11 & 3.12

[asottile-sentry]

works fine for me -- I suspect you're running mypy in an older python version and/or with a configuration setting selecting an older python:

$ mypy -c 'foo: list[int] = [1,2,3]'
Success: no issues found in 1 source file
$ mypy --version && python --version
mypy 1.11.0 (compiled: yes)
Python 3.12.2

[Tshimanga]

I suspect you're running mypy in an older python version

No, I am running mypy 1.11.0 and python 3.12 (as I indicated in my environment details above)

[JukkaL]

@Tshimanga Are you still experiencing the issue? Can you try creating a fresh venv using 3.9 or later, create an empty directory, and run mypy -c 'foo: list[int] = [1,2,3]', mypy --version and python --version in it? Can you also try running mypy --python-version 3.9 -c 'foo: list[int] = [1,2,3]'?