How to define dependency links in setup.py, for installing modules which are not present in PyPI

问题

I have a requirement (icdiff) for my module newprog and this module is present only on github, its not on PyPi, so I am writing the urls in dependency_links[],

dependency_links=["https://github.com/vnitinv/icdiff/blob/master/icdiff.py"],
install_requires=['icdiff']

But this is not working for me.It is giving

Downloading/unpacking icdiff (from newprog==0.1)
Could not find any downloads that satisfy the requirement icdiff (from
newprog==0.1)
Cleaning up...
No distributions at all found for icdiff (from newprog==0.1) 

来源：https://stackoverflow.com/questions/29295968/how-to-define-dependency-links-in-setup-py-for-installing-modules-which-are-not