在dos命令窗口输入pip install flask 遇到错误
错误:
ERROR: Could not find a version that satisfies the requirement Werkzeug>=0.15 (from flask) (from versions: none)
ERROR: No matching distribution found for Werkzeug>=0.15 (from flask)
解决办法
1. pip --trusted-host pypi.python.org install 安装包名字(flask)
2. 再不行 用镜像网站
pip install 安装包名字 -i http://pypi.doubanio.com/simple/ --trusted-host pypi.doubanio.com