pip install plug timeout

Enabling domestic address access

pip install sqlite3 -i http://mirrors.aliyun.com/pypi/simple/

Domestic Address:

Ali cloud http://mirrors.aliyun.com/pypi/simple/
China University of Science and Technology https://pypi.mirrors.ustc.edu.cn/simple/
watercress (douban) http://pypi.douban.com/simple /
Tsinghua https://pypi.tuna.tsinghua.edu.cn/simple/
University of Science and technology of China http://pypi.mirrors.ustc.edu.cn/simple/