pip安装pymssql出现ERROR: Cannot unpack file……报错解决_pip install pymysql出错?

pip install -i -i https://pypi.tuna.tsinghua.edu.cn/simple pymssql

ERROR: Cannot unpack file C:UsersWDYAppDataLocalTemppip-unpack-omb42fhlsimple.html (downloaded from C:UsersWDYAppDataLocalTemppip-req-build-lj_4f9cw, content-type: text/html); cannot detect archive format
ERROR: Cannot determine archive format of C:UsersWDYAppDataLocalTemppip-req-build-lj_4f9cw

将 pip install -i -i https://pypi.tuna.tsinghua.edu.cn/simple pymssql命令换成
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn pymssql

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn pymssql

[1]解决Python使用pip安装库文件出现“Error：Cannot unpack file…”的情况