How can I add a facebook user login functionality
If you are trying to develop a Web-Application and use FaceBook login, register as a facebook developer (it is free) and then go through their instructions. It is completely self-explanatory and quite easy to follow. 
Visit : developers.facebook.com for clear way of how to do this.
My python version is 3.4.3 and my django version is 1.9.6 . I tried many django facebook registrations apps  but almost all the versions are outdated. 
What I want is to allow users to login via facebook and check if their friends are registered to my website. Your help would be very much appreciated!