Street sweeping reminders in iCal
San Francisco sweeps streets twice a month in residential neighborhoods, and you will be fined if your car is parked on a street being swept. On my street, the schedule is the first and third Monday of each month, between 9am and 11am. I was trying to create reminders to myself in my calendar. Unfortunately, iCal does not have the ability to specify a recurring event with that definition.
No matter, Python to the rescue, the script below generates a year’s worth of reminders 12 hours before the event, in iCal vCalendar format. It does not correct for holidays, you will have to remove those yourself.
#!/usr/bin/python
"""Idora street sweeping calendar - 1st and 3rd Mondays of the month 9am-11am"""
import datetime
Monday = 0
one_day = datetime.timedelta(1)
today = datetime.date.today()
year = today.year
month = today.month
def output(day):
print """
BEGIN:VEVENT
DTEND:%(end)s
SUMMARY:Idora street sweeping
DTSTART:%(start)s
BEGIN:VALARM
TRIGGER:-PT12H
ATTACH;VALUE=URI:Basso
ACTION:AUDIO
END:VALARM
END:VEVENT
""" % {
'end': day.strftime('%Y%m%dT110000'),
'start': day.strftime('%Y%m%dT090000')
}
print """BEGIN:VCALENDAR
CALSCALE:GREGORIAN
VERSION:2.0"""
for i in range(12):
day = datetime.date(year, month, 1)
while day.weekday() != Monday:
day += one_day
output(day)
output(day + 14 * one_day)
month += 1
if month > 12:
month = 1
year += 1
print "END:VCALENDAR"
