Could not install packages due to an EnvironmentError: HTTPSConnectionPool(host='files.pythonhosted.

解决:

直接在install的后边加上 --user

#只为当前用户安装: pip install –user

报错:

ackages/64/a6/d7b6fb7bd0a4680a41f1d4b27061c7b768c673070ba8ac116f865de4e7ca/billiard-3.3.0.23.tar.gz (Caused by ConnectTimeoutError(, 'Connection to files.pythonhosted.org timed out. (connect timeout=15)'))

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