Dateutil uses iCalendar only with rrule, and didn't really require full compliance even before (for example rrule doesn't require the dtstart property, when fed a piece of iCalendar). What parts of RFC5545 should be supported, but are not?
Dateutil uses iCalendar only with rrule, and didn't really require full compliance even before (for example rrule doesn't require the dtstart property, when fed a piece of iCalendar). What parts of RFC5545 should be supported, but are not?