解決: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

打開終端，輸入

mkdir ~/.pip    

cd ~/.pip

創建pip.conf文件:

touch pip.conf

複製粘貼以下配置到pip.conf文件中：

[global]

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

[install]

trusted-host=pypi.douban.com

disable-pip-version-check = true  

timeout = 6000 

然後就可以了～～