Easy_install and Pip install Python libraries modify the default source

Domestic Pythoner strongly recommends the use of the pypi source of watercress

Although it is convenient to install third-party libraries with Easy_install and Pip
They are actually downloaded from the official Python source Pypi.python.org/pypi to the local, then unpacked and installed.
But for some reason, access to the official PyPI is erratic, slow, and occasionally inaccessible.

As with Ubuntu's apt and CentOS's yum, there are various image sources like PyPI.

The source of the highly recommended watercress in the country
http://pypi.douban.com/simple/
Note that there are/simple directories to follow.

Using the image source is simple, specifying it with-I is OK:
sudo easy_install-i http://pypi.douban.com/simple/elasticsearch
sudo pip install-i http://pypi.douban.com/simple/elasticsearch

Easy_install and Pip install Python libraries modify the default source