1.pretix / pretixTicket shop application for conferences, festivals, concerts, tech events, shows, exhibitions, workshops, barcamps, etc.pythondjangowebticketsconferencesevents+4 morePythonOther license2.6K total671 forks+10 starsfrom 2,549 · score 2.40
2.indico / indicoIndico - A feature-rich event management system, made @ CERN, the place where the Web was born.pythoneventsconferencessqlalchemyflaskPythonMIT2.1K total564 forks+4 starsfrom 2,119 · score 1.61