This python code plots multiple bandstructures after WIEN2k calculations. It only requires the energy files
Install required python libraries. For example, in the Linux command type:
pip install numpy matplotlib pyplot ast scipy argparse os
python wien2plot.py -n 3 -f gga.energyso gw.energyso mbj.energyso -e 0.315 0.295 0.286 -l GGA GW mBJ