提示:WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
错误原因:是因为你的环境有多个pip版本造成的.
解决办法:
用pip安装包时:采用python -m pip install pywin32就OK了.
不要用pip install pywin32
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