Can't run animation demo

[codeeasyi]

i get some errors after i installed the dependencies. To try the animation demo.

ModuleNotFoundError: No module named 'numpy.core._multiarray_umath'.

ImportError: Matplotlib qt-based backends require an external PyQt4, PyQt5,

ImportError: cannot import name '_validate_lengths' from 'numpy.lib.arraypad'

The following command solved my problems
pip3 install numpy==1.16.0 scikit-image==0.14.2 pyside2==5.14.0

My system
Python 3.8.10 on Linux Mint 20.2 Uma \n \l

Hope it helps someone. Many greetings