fix_calendar.py

from icalendar import Calendar, Event

file_path = 'fizyka_techniczna.ics'


g = open(file_path,'rb')
cal = Calendar.from_ical(g.read())
for component in cal.walk():
    if component.name == "VEVENT":
        component['uid'] = '%s%s' % (component['uid'], component['dtstart'])


f = open('fixed_' + file_path, 'wb')
f.write(cal.to_ical())
f.close()

g.close()