在Python中解析ics文件。 Icalendar软件包不返回开始/结束日期和其他属性

Question

Im trying to parse google calendar ( cal.ics ) using icalendar package and running this script:

from icalendar import Calendar, Event
from datetime import datetime

g = open('cal.ics','rb')
gcal = Calendar.from_ical(g.read())
for component in gcal.walk():
        print component.get('summary')
        print component.get('dtstart')

g.close()

The output is correct summary but instead of start date im getting:

<icalendar.prop.vDDDTypes object at 0x10bae9b10>

Tried replacing get with decoded like this:

    print component.decoded('summary')
    print component.decoded('dtstart')

...but got en error:

---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-57-d6a73c485b11> in <module>()
      8 #        print component.content_line
      9         print component.name
---> 10         print component.decoded('summary')
     11         print component.get('dtstart')
     12 

~/anaconda/lib/python2.7/site-packages/icalendar/cal.pyc in decoded(self, name, default)
    238         else:
    239             if default is _marker:
--> 240                 raise KeyError(name)
    241             else:
    242                 return default

KeyError: 'summary'

All the docs i found are about adding to the calendar while im trying to parse it and eventually move parts of it into pandas. If you have any ideas/suggestions please help.

Answer 1

I had this problem years ago- real source of frustration. Solution is to do

component.get('dtstart').dt

In general, when you're having a problem like this, try calling dir() on it.