[instagram] Modernize

youtube_dl/extractor/instagram.py

@@ -1,35 +1,39 @@
+from __future__ import unicode_literals
+
 import re
 
 from .common import InfoExtractor
 
+
 class InstagramIE(InfoExtractor):
-    _VALID_URL = r'(?:http://)?instagram\.com/p/(.*?)/'
+    _VALID_URL = r'http://instagram\.com/p/(?P<id>.*?)/'
     _TEST = {
-        u'url': u'http://instagram.com/p/aye83DjauH/?foo=bar#abc',
-        u'file': u'aye83DjauH.mp4',
-        u'md5': u'0d2da106a9d2631273e192b372806516',
-        u'info_dict': {
-            u"uploader_id": u"naomipq", 
-            u"title": u"Video by naomipq",
-            u'description': u'md5:1f17f0ab29bd6fe2bfad705f58de3cb8',
+        'url': 'http://instagram.com/p/aye83DjauH/?foo=bar#abc',
+        'md5': '0d2da106a9d2631273e192b372806516',
+        'info_dict': {
+            'id': 'aye83DjauH',
+            'ext': 'mp4',
+            'uploader_id': 'naomipq',
+            'title': 'Video by naomipq',
+            'description': 'md5:1f17f0ab29bd6fe2bfad705f58de3cb8',
         }
     }
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
-        video_id = mobj.group(1)
+        video_id = mobj.group('id')
         webpage = self._download_webpage(url, video_id)
         uploader_id = self._search_regex(r'"owner":{"username":"(.+?)"',
-            webpage, u'uploader id', fatal=False)
-        desc = self._search_regex(r'"caption":"(.*?)"', webpage, u'description',
+            webpage, 'uploader id', fatal=False)
+        desc = self._search_regex(r'"caption":"(.*?)"', webpage, 'description',
             fatal=False)
 
-        return [{
+        return {
             'id': video_id,
             'url': self._og_search_video_url(webpage, secure=False),
             'ext': 'mp4',
-            'title':     u'Video by %s' % uploader_id,
+            'title': 'Video by %s' % uploader_id,
             'thumbnail': self._og_search_thumbnail(webpage),
             'uploader_id': uploader_id,
             'description': desc,
-        }]
+        }