iCal feed parser for HearNear.org

parser.py

from icalendar import Calendar, Event
import simplejson as json
import re
import web
from mimerender import mimerender
import sys

event = {}
urls = (
        'https://api.geoloqi.com/1/place/create', 'place'
        )

class place:
    def POST(self, event):
        '''
        need to post event here
        '''

def get_lat(d):
    if d.find("<Latitude>") > 0:
        event['latitude'] = d[d.find("<Latitude>")+10:d.find("</Latitude>")]

def get_longitude(d):
    if d.find("<Longitude>") > 0:        
         event["longitude"] = d[d.find("<Longitude>")+11:d.find("</Longitude>")]

def get_lat_long(detail):
    for d in detail:
        get_lat(d) 
        get_longitude(d)

if __name__ == '__main__':

    if len(sys.argv) != 2:
        print 'Usage: python parser.py [ics file]'
        sys.exit()
    else:
        try:
            cal = Calendar.from_string(open(sys.argv[1], 'rb').read())
        except:
            print 'error opening ' + sys.argv[1]
            sys.exit()
        for component in cal.walk():
            if component.name == "VEVENT":
                extra = {}
                uid = component.get('UID')
                match = re.search('[0-9]+', uid)
                event['name'] = match.group(0)
                event['radius'] = 500
                event['layer_id'] = 'go'
                dtstart = component.get('DTSTART')
                summary = str(component.get('SUMMARY'))
                location = str(component.get('LOCATION'))
                detail = component.get('X-TRUMBA-CUSTOMFIELD')
                get_lat_long(detail)
                date = str(dtstart)
                event['date_from'] = date[:8]
                extra['summary'] = summary
                extra['location'] = location
                event['extra'] = extra
                #TODO: need to post this event to 'https://api.geoloqi.com/1/place/create'
                #currently I'm using http://webpy.org/ to REST. 
                print event