addon.py

#!/usr/bin/env python
from xbmcswift import Plugin, download_page
from BeautifulSoup import BeautifulSoup as BS, SoupStrainer as SS
from urlparse import urljoin
from resources.lib.getflashvideo import YouTube
import re

__plugin_name__ = 'Academic Earth'
__plugin_id__ = 'plugin.video.academicearth'

plugin = Plugin(__plugin_name__, __plugin_id__)

BASE_URL = 'http://academicearth.org'
def full_url(path):
    return urljoin(BASE_URL, path)

# Default view
@plugin.route('/')
def show_lectures():
    COURSE_URL = 'http://academicearth.org/courses/introduction-to-computer-science-and-programming'
    src = download_page(COURSE_URL)
    html = BS(src)
    parent_div = html.find('div', {'class': 'results-list'})
    lectures = parent_div.findAll('li')

    items = [{
        'label': lecture.h4.a.string,
        'url': plugin.url_for('watch_lecture', url=full_url(lecture.h4.a['href'])),
        'thumbnail': full_url(lecture.find('img', {'class': 'thumb-144'})['src']),
        'info': {'plot': lecture.p.string},
        'is_folder': False,
        'is_playable': True,
    } for lecture in lectures]

    return plugin.add_items(items)

@plugin.route('/watch/<url>')
def watch_lecture(url):
    src = download_page(url)

    # Get video url here.
    # Already have youtube code, so extract the youtube video ID and call our code
    p = re.compile('flashVars.ytID = "(.+?)"')
    m = p.search(src)
    if not m:
        raise Exception, 'Couldn\'t parse youtube ID!'

    video_url = YouTube.get_flashvideo_url(videoid=m.group(1))
    print video_url


if __name__ == '__main__': 
    plugin.run()