app.ipynb -> ModuleNotFoundError: No module named 'ipympl'

[dblanding]

I get the ModuleNotFoundError when I run the very first code block of app.ipynb as a jupyter notebook on Ubuntu 22.04

The error is resolved by commenting out the line %matplotlib ipympl and substituted the line import matplotlib as ipympl

The code block then runs but with the following warning:

Not running on CoLab

/usr/lib/python3/dist-packages/scipy/__init__.py:146: UserWarning: A NumPy version >=1.17.3 and <1.25.0 is required for this version of SciPy (detected version 1.26.2
  warnings.warn(f"A NumPy version >={np_minversion} and <{np_maxversion}"