pip 指定源

windows系统，在用户目录下，比如C:/Users/Administrator新建pip文件夹，文件夹内新建pip.ini文件，文件内容举例如下

[global]respect-virtualenv = falsetrusted-host = mirrors.aliyun.comdownload-cache = C:/Users/Administrator/pip/cache/log-file = C:/Users/Administrator/pip/pip.log[install]timeout = 30find-links =    http://mirrors.aliyun.com/pypi/simple/或者配置为[global]respect-virtualenv = falsetrusted-host = http://pypi.douban.comtimeout = 6000index-url = https://pypi.douban.com/simpledownload-cache = C:/Users/Administrator/pip/cache/log-file = C:/Users/Administrator/pip/pip.log

linux 修改 ~/.pip/pip.conf (没有就创建一个)， 内容如下：

[global]index-url = https://pypi.tuna.tsinghua.edu.cn/simple