Your current environment

When excute "pip install vllm-ascend==0.11.0rc0" , Prompt Error:
TypeError: unsupported operand type(s) for |: 'type' and 'NoneType'
[ERROR] 2025-10-24-11:31:36 (PID:1609325, Device:-1, RankID:-1) ERR99999 UNKNOWN applicaiton exception

I checked my current Python version ：
[root@devserver-314b-0 ~]# python --version
Python 3.9.9

while The | operator in type annotations requires Python 3.10+.

In our README describe:
Python >= 3.9, < 3.12 ,maybe it's not proper ; ---->suggest "Python >= 3.10, < 3.12 " I have tested Python3.10, thta's ok !