Making your own copy (fork) of matplotlib
You need to do this only once. The instructions here are very similar
to the instructions at http://help.github.com/forking/ — please see
that page for more detail. We’re repeating some of it here just to give the
specifics for the matplotlib project, and to suggest some default names.
Set up and configure a github account
If you don’t have a github account, go to the github page, and make one.
You then need to configure your account to allow write access — see
the Generating SSH keys help on github help.
Create your own forked copy of matplotlib
Log into your github account.
Go to the matplotlib github home at matplotlib github.
Click on the fork button:
Now, after a short pause and some ‘Hardcore forking action’, you
should find yourself at the home page for your own forked copy of matplotlib.