Install GTKWattman on opensuse tumbleweed

This is what I tried. it actually doesn't work. I even tried installing gnome and this still didn't work. not sure what's going on.

zypper in python3-gobject
zypper in python3-pycairo-devel
zypper in gobject-introspection-devel
python3 -m venv venv_wattman
source venv_wattman/bin/activate
python -m pip install --upgrade matplotlib setuptools pycairo
git clone https://github.com/BoukeHaarsma23/WattmanGTK.git
cd WattmanGTK
pip -m install -e .