YouTube comment reading

gistfile1.py

import gdata.youtube.service
from time import sleep


class YtsClassic(object):
    """
    http://finnaarupnielsen.wordpress.com/2009/09/21/getting-comments-from-youtube-via-pythons-gda/
    """
    def __init__(self):
        self.yts = gdata.youtube.service.YouTubeService()
    
    def get_video_comments(self, video_id='jofNR_WkoCE'):
        """
        Has there been changes in the YouTube API?
        http://apiblog.youtube.com/2010/02/best-practices-for-avoiding-quota.html
        """
        urlpattern = 'http://gdata.youtube.com/feeds/api/videos/' + \
                     video_id + \
                     '/comments?start-index=%d&max-results=25'
        index = 1
        url = urlpattern % index
        comments = []
        while url:
            try: 
                ytfeed = self.yts.GetYouTubeVideoCommentFeed(uri=url)
                comments.extend([ comment.content.text for comment in ytfeed.entry ])
                url = ytfeed.GetNextLink().href
                sleep(3)
            except Exception:
                break
        return comments


def main():
    yts_classic = YtsClassic()
    comments = yts_classic.get_video_comments()
    print(len(comments))

if __name__ == '__main__':
    main()