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[youtubedl] / youtube_dl / extractor / googlesearch.py
1 from __future__ import unicode_literals
2
3 import itertools
4 import re
5
6 from .common import SearchInfoExtractor
7
8
9 class GoogleSearchIE(SearchInfoExtractor):
10 IE_DESC = 'Google Video search'
11 _MAX_RESULTS = 1000
12 IE_NAME = 'video.google:search'
13 _SEARCH_KEY = 'gvsearch'
14 _TEST = {
15 'url': 'gvsearch15:python language',
16 'info_dict': {
17 'id': 'python language',
18 'title': 'python language',
19 },
20 'playlist_count': 15,
21 }
22
23 def _get_n_results(self, query, n):
24 """Get a specified number of results for a query"""
25
26 entries = []
27 res = {
28 '_type': 'playlist',
29 'id': query,
30 'title': query,
31 }
32
33 for pagenum in itertools.count():
34 webpage = self._download_webpage(
35 'http://www.google.com/search',
36 'gvsearch:' + query,
37 note='Downloading result page %s' % (pagenum + 1),
38 query={
39 'tbm': 'vid',
40 'q': query,
41 'start': pagenum * 10,
42 'hl': 'en',
43 })
44
45 for hit_idx, mobj in enumerate(re.finditer(
46 r'<h3 class="r"><a href="([^"]+)"', webpage)):
47
48 # Skip playlists
49 if not re.search(r'id="vidthumb%d"' % (hit_idx + 1), webpage):
50 continue
51
52 entries.append({
53 '_type': 'url',
54 'url': mobj.group(1)
55 })
56
57 if (len(entries) >= n) or not re.search(r'id="pnnext"', webpage):
58 res['entries'] = entries[:n]
59 return res