pip install unitest报错Getting req

INFO: pip is still looking at multiple versions of gevent to determine which version is compatible with other requirements. This could take a while. × Getting requirements to build wheel did not run successfully.

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1、升级pip python -m pip install --upgrade pip

仍报错

2、升级setuptools wheel pip install --upgrade setuptools wheel

setuptools :创建和分发包，尤其是拥有依赖关系的
wheel :轮子，有助于使包的安装工作正常进行。它们允许更快的安装和更稳定的包分发过程

升级成功，仍是报错