Software issues Simultaneous matplotlib and pyroot Google: pyroot matplotib event loop pyROOT Interactivity and matplotlib - ROOT - ROOT Forum Canvas freezes on matplotlib import - ROOT - ROOT Forum PyROOT batch mode https://sft.its.cern.ch/jira/browse/ROOT-11027 rootpy / parso debug log output ipython/ipython#10946 tl;dr logging.getLogger(‘parso.python.diff’).disabled = True