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debian/{compat,control}: Update to debhelper compatibility level 12.
[youtubedl] / youtube_dl / extractor / academicearth.py
1 from __future__ import unicode_literals
2
3 import re
4
5 from .common import InfoExtractor
6
7
8 class AcademicEarthCourseIE(InfoExtractor):
9 _VALID_URL = r'^https?://(?:www\.)?academicearth\.org/playlists/(?P<id>[^?#/]+)'
10 IE_NAME = 'AcademicEarth:Course'
11 _TEST = {
12 'url': 'http://academicearth.org/playlists/laws-of-nature/',
13 'info_dict': {
14 'id': 'laws-of-nature',
15 'title': 'Laws of Nature',
16 'description': 'Introduce yourself to the laws of nature with these free online college lectures from Yale, Harvard, and MIT.',
17 },
18 'playlist_count': 3,
19 }
20
21 def _real_extract(self, url):
22 playlist_id = self._match_id(url)
23
24 webpage = self._download_webpage(url, playlist_id)
25 title = self._html_search_regex(
26 r'<h1 class="playlist-name"[^>]*?>(.*?)</h1>', webpage, 'title')
27 description = self._html_search_regex(
28 r'<p class="excerpt"[^>]*?>(.*?)</p>',
29 webpage, 'description', fatal=False)
30 urls = re.findall(
31 r'<li class="lecture-preview">\s*?<a target="_blank" href="([^"]+)">',
32 webpage)
33 entries = [self.url_result(u) for u in urls]
34
35 return {
36 '_type': 'playlist',
37 'id': playlist_id,
38 'title': title,
39 'description': description,
40 'entries': entries,
41 }