PEP 585 rewrites don't work

[phormio]

bash$ cat -n experiment1.py
     1  from __future__ import annotations
     2  
     3  def f(x: List[str]) -> None
     4      print(100)
bash$ python3 --version
Python 3.11.2
bash$ pipx run pyupgrade --py39-plus experiment1.py
bash$ cat -n experiment1.py
     1  from __future__ import annotations
     2  
     3  def f(x: List[str]) -> None
     4      print(100)
bash$ 

pyupgrade should change List[str] to list[str]. In fact, it leaves the file unchanged.

[asottile]

garbage in garbage out. your code has a NameError

[phormio]

It has a SyntaxError. When I fix it, there is no NameError.

Here is the corrected program:

from __future__ import annotations

from typing import List

def f(x: List[str]) -> None:
    print(100)

The pyupgrade command in my previous comment now behaves according to the documentation.

I wrote the program to check whether pyupgrade requires all of the list items in the "Availability" section to be true or only one of them. The documentation is unclear on this point.

[asottile]

why would you expect a malformed input to produce a meaningful result

I don't understand the mental gymnastics