Ok, I must be stupid. I can merge this with my local repo, and I can push it up to my forked master, but I can't seem to get this to merge to matplotlib.

have a look at https://github.com/WeatherGod/matplotlib/network . You need to do the following:

git checkout master
#assuming you have a remote named  matplotlib pointing to github.com/matplotlib/matplotlib:
git pull matplotlib master
git merge bugfix/anim3d_example
git push matplotlib master

Having said that, shouldn't these changes be made on the v1.0.x branch? From there, we can merge the v1.0.x branch into master.

I figured it out before reading your comment. It does make sense to commit to v1.0.x first. How do we fix this?

I don't know. You should not have pushed the change to master.

Duh, nevermind... animations came after version 1.0. This example isn't in the 1.0.x branch.