Longer term, it would be nice to refactor animation code so that the HTMLWriter could write directly to a string (via StringIO) rather than the verbose code required to use a tempfile.

As one user, this would make me happy...

JSAnimation no longer works with matplotlib 1.5 -- jakevdp suggested that the new display hooks in 8cc21db may be the culprit. It's a handy tool for notebooks, especially as the animations remain functional when rendered by nbviewer.

I've got a PR that's waiting to pull JSAnimation into matplotlib #4821.

Ahh. apologies! That's great news.

@gforsyth – I couldn't reproduce the issues that were reported on twitter: seems to work on 1.5 for me. Does anyone have an example that breaks?

@jakevdp - The animation in this notebook isn't working for me on two separate machines (one running jupyterhub, the other local). https://github.com/numerical-mooc/numerical-mooc/blob/master/lessons/03_wave/03_02_convectionSchemes.ipynb

Everything loads (no errors thrown), but the buttons are unresponsive and no animation plays

Found the source of the problem: with matplotlib 1.5, the HTMLWriter only outputs a single frame. I'm still not sure what caused this change however...

It would be easier to debug with a minimal non-notebook example that fails.

I have to pivot to something else now — I would be much more likely to be able to debug this soon if someone were to tackle creating a minimal complete example that reproduces the bug.

@jakevdp That bug sounds like a duplicate of #5471
The workaround is to add an empty init function to the animation

@jenshnielsen @jakevdp Thanks! That fixed it on my end -- JSAnimation working as expected. Thanks for your help!