1.pretix / pretixTicket shop application for conferences, festivals, concerts, tech events, shows, exhibitions, workshops, barcamps, etc.pythondjangowebticketsconferencesevents+4 morePythonOther license2.6K total671 forks+31 starsfrom 2,528 · score 3.47
2.indico / indicoIndico - A feature-rich event management system, made @ CERN, the place where the Web was born.pythoneventsconferencessqlalchemyflaskPythonMIT2.1K total564 forks+11 starsfrom 2,112 · score 2.48