Yearly repeating events raise an error

[ndw]

Consider this fragment:

RRULE:FREQ=YEARLY;INTERVAL=1;UNTIL=20190328
DTEND;VALUE=DATE:20170330
DTSTART;VALUE=DATE:20170329

When icalevents loads this event, it will normalize the date into a datetime. But when dateutil.rrule is called subsequently, it will object:

RRULE UNTIL values must be specified in UTC when DTSTART is timezone-aware

Unfortunately, there are several places where start and end times are compared and the possibility of a mixture of date and datetime objects isn't handled.

[Currywurst]

I got this too and fixed it by adding few lines after event.all_day and before try: event.location in the file icalparser.py:

event.all_day = type(component.get('dtstart').dt) is date

`

if component.get('rrule'):

    event.recurring = True
    if( component.get('rrule').get('until') ):
        iIndexListUntil = 0
        for x in component.get('rrule').get('until'):
            currentUntil = component.get('rrule').get('until')[iIndexListUntil]
            if not hasattr(currentUntil, 'tzinfo'):
                component.get('rrule').get('until')[iIndexListUntil] = normalize( currentUntil, tz=tz )
            iIndexListUntil += 1

`
try:
event.location = str(component.get('location'))
except UnicodeEncodeError as e:
event.location = str(component.get('location').encode('utf-8'))

So it adds timezone informations if until does not have one

[kujiy]

Weekly would occur the same also

DTSTART;VALUE=DATE:20190706
DTEND;VALUE=DATE:20190713
RRULE:FREQ=WEEKLY;INTERVAL=5;BYDAY=SA

I haven't looked deeply yet but just let me take a memo.

[cancan101]

This still seems to be an issue even on 0.1.25:
With this rule string:

FREQ=WEEKLY;UNTIL=20200627;BYDAY=MO,WE;WKST=SU

[cancan101]

I ended up using:

        def fix_rule(rule):
            if 'UNTIL' in rule:
                rule['UNTIL'] = [normalize(r, tz=tz) for r in rule['UNTIL']]
            return rule

        # If dtstart is a datetime, make sure it's in a timezone.
        rdtstart = component['dtstart'].dt
        if type(rdtstart) is datetime:
            rdtstart = normalize(rdtstart, tz=tz)
            rrules = [fix_rule(x) for x in rrules]```