当尝试在cmd中用pip命令安装第三方库时，出现如下的WARNING
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))': /simple/arguments/ WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))': /simple/arguments/ WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))': /simple/arguments/ WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))': /simple/arguments/ WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))': /simple/arguments/ Could not fetch URL https://pypi.org/simple/arguments/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/arguments/ (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1131)'))) - skipping ERROR: Could not find a version that satisfies the requirement arguments (from versions: none) ERROR: No matching distribution found for arguments
检查错误信息是网络的原因，通过镜像网站安装仍然失败
当关闭代理后一切恢复正常
当然出现这样的问题也可以尝试更换pip源
pip install 包名 -i http://pypi.douban.com/simple
其他的源
阿里云 http://mirrors.aliyun.com/pypi/simple/ 中国科技大学 https://pypi.mirrors.ustc.edu.cn/simple/ 豆瓣(douban) http://pypi.douban.com/simple/ 清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/ 中国科学技术大学 http://pypi.mirrors.ustc.edu.cn/simple/
标签：redirect,status,None,simple,pypi,WARNING,arguments From： https://www.cnblogs.com/xinmind/p/16725722.html