## pip - pip9.0 以后就**不支持**egg了，但是官方的pypi应该是做了一些事情，使得上传egg之后pip仍然可以安装egg。可以参考pip的[Release Notes](https://pip.pypa.io/en/stable/news/#id125) >BACKWARD INCOMPATIBLE Remove the attempted autodetection of requirement names from URLs, URLs must include a name via #egg=.
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