pip install -r requirements.txt添加镜像

临时修改：加参数-i和镜像地址 python -m pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple/

pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple

豆瓣 https://pypi.doubanio.com/simple/
网易 https://mirrors.163.com/pypi/simple/
阿里云 https://mirrors.aliyun.com/pypi/simple/
腾讯云 https://mirrors.cloud.tencent.com/pypi/simple
清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/