event-list.py

def ical_event_generator(src_list):
    prev_ical_event = None
    for src_event in src_list:
        if prev_ical_event is None:
            prev_ical_event = mk_ical_event(src_event)
            continue
        else:
            if src_event.ending_day == (prev_ical_event.ending_day + 1):
                prev_ical_event.ending_day += 1
            else:
                yield prev_ical_event
                prev_ical_event = mk_ical_event(src_event)
    yield prev_ical_event

event_src_list = [...]
ical_event_list = list(ical_event_generator(event_src_list))