Problems in the download process of Python-pip domestic source and using source

Domestic sources:

Tsinghua: https://pypi.tuna.tsinghua.edu.cn/simple

Alibaba Cloud: http://mirrors.aliyun.com/pypi/simple/

University of Science and Technology of China https://pypi.mirrors.ustc.edu.cn/simple/

Huazhong University of Science and Technology: http://pypi.hustunique.com/

Shandong University of Technology: http://pypi.sdutlinux.org/ 
Douban: http://pypi.douban.com/simple/

 

If "The repository located at pypi.doubanio.com is not a trusted or secure host and is being ignored" appears, you can try changing http to https .

 

Welcome to join the technical discussion group, no ads, pure technology, welcome all big guys, newbies are also welcome, discrimination against novices is prohibited in the group, big guys answer questions voluntarily.