pip更换下载源

清华

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

中科大

https://pypi.mirrors.ustc.edu.cn/simple/

阿里云

https://mirrors.aliyun.com/pypi/simple/

豆瓣

http://pypi.douban.com/simple/

执行下面代码：

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

会输出：

Writing to C:UsersduanyingAppDataRoamingpippip.ini

此时就成功了

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

其中xxx为你要下载的包，
只需要在后面加上

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

就行了

参考：

• [1] https://blog.csdn.net/Carl_Shawshank/article/details/123449481?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522165876334116781667813627%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=165876334116781667813627&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_allfirst_rank_ecpm_v1~pc_rank_34-1-123449481-null-null.142^v34pc_rank_34,185^v2control&utm_term=pip%E6%8D%A2%E6%B8%85%E5%8D%8E%E4%B8%8B%E8%BD%BD%E6%BA%90&spm=1018.2226.3001.4187
• [2] https://blog.csdn.net/qq_39330829/article/details/109157173?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522165876379516782248561715%2522%252C%2522scm%2522%253A%252220140713.130102334…%2522%257D&request_id=165876379516782248561715&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_allsobaiduend~default-1-109157173-null-null.142^v34pc_rank_34,185^v2control&utm_term=pip%E6%8D%A2%E4%B8%8B%E8%BD%BD%E6%BA%90&spm=1018.2226.3001.4187