Chapter 16: issue with animation

I noticed that as using "%matplotlib nbagg" in chapter 16, I am not able to see images and animation. While the images are saved in the directory but now shown in the notebook, animation is not working.
An error is shown: Javascript Error: IPython is not defined

I tried replacing "%matplotlib nbagg" with "%matplotlib inline". This solves the problem with the image visualization, but the animation obviously does not work and visualizes only one frame. Any help?

Start by reproducing the Chapter 16 notebook with `%matplotlib nbagg` and inspect the reported `IPython is not defined` JavaScript error. Confirm that notebook images render and that the animation displays all frames; the repository is deprecated, so check whether the issue still applies in the current environment.

Written by the indexing model from the issue text.