[root@mail ~]# btpip install requests==2.27 -I
ERROR: Invalid requirement: 'requests==2.27\xa0\xa0-I'
WARNING: You are using pip version 20.3.3; however, version 23.1.2 is available.
You should consider upgrading via the '/www/server/panel/pyenv/bin/python3.7 -m pip install --upgrade pip' command.
执行这条命令报错