Syntax error with Python 3.9

[MasterSergius]

Intro
I know, a lot of issues were created regarding my problem, for example #8872, and all of them are closed, but my problem still exists.

Bug Report
A lot of errors for type comments, like Tuple[str, str] - error: syntax error in type comment
Code was tested with python 3.6-3.8, but syntax errors appears only for Python 3.9, the last check was done with CPython-3.9.5 and mypy-0.910, full log can be found here https://github.com/MasterSergius/acachecontrol/pull/17/checks?check_run_id=2905621045

To Reproduce

1. Write some code like:

def any_method(self, key: Tuple[str, str]) -> bool:
   pass

2. Run mypy check within Python 3.9+, syntax error in result

Your Environment
CPython-3.9.5, mypy-0.910 (GH actions)
The same true for CPython-3.9.2, mypy-0.910, Ubuntu-20.04 (local system)

[hauntsaninja]

That's because all those issues were fixed, a long time ago. You're not using the mypy version you claim, you're using v0.720.

[MasterSergius]

@hauntsaninja I bet, you haven't even opened that check log, provided via link above. I've also tested locally via pyenv. I can provide screenshots.

[emmatyping]

@MasterSergius I'm actually quite sure that @hauntsaninja did click through to the log because that's they only way to know that your pre-commit config lists mypy 0.720 as mentioned, and that you haven't changed that. Please be more respectful to people who are volunteering their time to work on a tool you use.

[MasterSergius]

@ethanhs hmm, you're right... Sorry, @hauntsaninja , I haven't spotted that, that's definitely my fault. The only question that I need to find the answer to - why I've got an error on my local machine, probably, some issues with pyenv. After full removal and recreating just for Python3.9.2 it started to work on my local machine too. Thank you again, I'll behave better, I promise )