gevent库
执行pip3 install -U --force-reinstall --no-binary :all: gevent的时候报错一大堆红字
C:\Users\Administrator>pip install gevent
Collecting gevent
Downloading gevent-20.4.0-cp37-cp37m-win32.whl (1.4 MB)
|████████████████████████████████| 1.4 MB 24 kB/s
Requirement already satisfied: cffi>=1.12.2; platform_python_implementation == "CPython" and sys_platform == "win32" in c:\python3\lib\site-packages (from gevent) (1.12.3)
Collecting greenlet>=0.4.14; platform_python_implementation == "CPython"
Downloading greenlet-0.4.15-cp37-cp37m-win32.whl (14 kB)
Requirement already satisfied: pycparser in c:\python3\lib\site-packages (from cffi>=1.12.2; platform_python_implementation == "CPython" and sys_platform == "win32"->gevent) (2.19)
Installing collected packages: greenlet, gevent
Successfully installed gevent-20.4.0 greenlet-0.4.15
WARNING: You are using pip version 20.0.2; however, version 20.1 is available.
You should consider upgrading via the 'c:\python3\python.exe -m pip install --upgrade pip' command.
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