pip3安装库时报超时问题小结

pip3安装库时报超时问题小结

 

在Linux测试服务器上使用pip3安装组件时,遇到下面错误:

 

#pip3 install cryptography
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by "ProxyError("Cannot connect to proxy.", timeout("timed out"))": /simple/cryptography/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by "ProxyError("Cannot connect to proxy.", timeout("timed out"))": /simple/cryptography/
....................................
ERROR: Could not find a version that satisfies the requirement cryptography (from versions: none)
ERROR: No matching distribution found for cryptography
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