Comment # 2 on bug 1136634 from Lucie Charrier

I confirm this bug with the python3-matplotlib package in openSUSE Leap 15.1.

The Geophar software (source here: https://github.com/wxgeo/geophar, we launch
the software by running geophar.pyw) crashes when I want to make a graph with
the packages of the openSUSE repositories installed: python3-matplotlib,
python3-matplotib-tk, python3-matplotib-qt5 and python3-matplotlib-qt-shared

I remove the 4 packages and install matplotlib with the command:

sudo pip3 install matplotlib 

and then everything works!