ERROR: Could not find a version that satisfies the requirement virtualenv (from versions: none)

其他 2020-02-14 11:18:01 阅读次数: 0

在安装virtualenv 时，碰到了如下问题
在这里插入图片描述
这是由于网络不稳定，因此在安装模块时，指定国内镜像

pip install 包名 -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com

其后指定的 --trusted-host pypi.douban.com 是为了获得ssl证书的认证

在这里插入图片描述

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转载自blog.csdn.net/qq_34659777/article/details/104299953

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