错误原因：pip 21.0将于2021年1月停止对Python 2.7的支持
解决方法：卸载python2的pip，重新安装pip，然后升级到21版本以下就可以， 我用的系统是Centos 7.3
yum remove python-pipyum -y install python-pippip install --upgrade "pip < 21.0"
如果安装python2的pip失败可以试试下面命令安装下epel扩展源
yum -y install epel-release
详细解决方案
python2 pip升级错误 sys.stderr.write(f“ERROR: {exc}“)
热度：21 发布时间：2023-12-17 16:52:15.0
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