How to convert YouTube API duration to seconds?

Question

For the sake of interest I want to convert video durations from YouTubes ISO 8601 to seconds. To future proof my solution, I picked a really long video to test it a

Answer 1

So this is what I came up with - a custom parser to interpret the time:

def durationToSeconds(duration):
    """
    duration - ISO 8601 time format
    examples :
        'P1W2DT6H21M32S' - 1 week, 2 days, 6 hours, 21 mins, 32 secs,
        'PT7M15S' - 7 mins, 15 secs
    """
    split   = duration.split('T')
    period  = split[0]
    time    = split[1]
    timeD   = {}

    # days & weeks
    if len(period) > 1:
        timeD['days']  = int(period[-2:-1])
    if len(period) > 3:
        timeD['weeks'] = int(period[:-3].replace('P', ''))

    # hours, minutes & seconds
    if len(time.split('H')) > 1:
        timeD['hours'] = int(time.split('H')[0])
        time = time.split('H')[1]
    if len(time.split('M')) > 1:
        timeD['minutes'] = int(time.split('M')[0])
        time = time.split('M')[1]    
    if len(time.split('S')) > 1:
        timeD['seconds'] = int(time.split('S')[0])

    # convert to seconds
    timeS = timeD.get('weeks', 0)   * (7*24*60*60) + \
            timeD.get('days', 0)    * (24*60*60) + \
            timeD.get('hours', 0)   * (60*60) + \
            timeD.get('minutes', 0) * (60) + \
            timeD.get('seconds', 0)

    return timeS

Now it probably is super non-cool and so on, but it works, so I'm sharing because I care about you people.