解决:pip is configured with locations that require TLS/SSL

bug:

Could not fetch URL https://pypi.python.org/simple/: ...
or
pip is configured with locations that require TLS/SSL

打开终端，输入

mkdir ~/.pip    

cd ~/.pip

创建pip.conf文件:

touch pip.conf

复制粘贴以下配置到pip.conf文件中：

[global]

index-url = https://pypi.douban.com/simple/ 

[install]

trusted-host=pypi.douban.com

disable-pip-version-check = true  

timeout = 6000 

然后就可以了～～