[Matplotlib-users] matplotlib 3.0 animation blitting bug?

DJP djpine at gmail.com
Tue Oct 16 08:41:11 EDT 2018

This looks like a bug to me, but maybe someone knows better...

After updating to matplotlib 3.0, I get the following problem on animations
that use blitting: A horizontal bar appears at the bottom and a vertical bar
on the right of function animation plots.  The attached screenshot shows the
problem for the "The Bayes update” example from the matplotlib animation

This same problem occurs on all animation files I’ve tried that use
blitting.  None of them had the problem before I updated.

Interestingly enough, when I save the animation to an mpeg4 file, there is
no problem in the saved movie file.

This occurs on a system configured as follows:

macOS: 10.13.6
Python: 3.7.0 Anaconda distribution
matplotlib: 3.0.0

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