[5min] Remove helper method and modernize

Previously, other extractor would go call a private(!) helper method. Instead, just hardcode the 5min:video_id format - it's not if that would ever change.

youtube_dl/extractor/aol.py

@@ -3,7 +3,6 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
-from .fivemin import FiveMinIE
 
 
 class AolIE(InfoExtractor):
@@ -42,9 +41,10 @@ class AolIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         video_id = mobj.group('id')
-
         playlist_id = mobj.group('playlist_id')
-        if playlist_id and not self._downloader.params.get('noplaylist'):
+        if not playlist_id or self._downloader.params.get('noplaylist'):
+            return self.url_result('5min:%s' % video_id)
+
         self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
 
         webpage = self._download_webpage(url, playlist_id)
@@ -69,4 +69,3 @@ class AolIE(InfoExtractor):
             'entries': entries,
         }
 
-        return FiveMinIE._build_result(video_id)

youtube_dl/extractor/engadget.py

@@ -3,7 +3,6 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
-from .fivemin import FiveMinIE
 from ..utils import (
     url_basename,
 )
@@ -27,11 +26,10 @@ class EngadgetIE(InfoExtractor):
     }
 
     def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        video_id = mobj.group('id')
+        video_id = self._match_id(url)
 
         if video_id is not None:
-            return FiveMinIE._build_result(video_id)
+            return self.url_result('5min:%s' % video_id)
         else:
             title = url_basename(url)
             webpage = self._download_webpage(url, title)
@@ -39,5 +37,5 @@ class EngadgetIE(InfoExtractor):
             return {
                 '_type': 'playlist',
                 'title': title,
-                'entries': [FiveMinIE._build_result(id) for id in ids]
+                'entries': [self.url_result('5min:%s' % vid) for vid in ids]
             }

youtube_dl/extractor/fivemin.py

@@ -1,11 +1,11 @@
 from __future__ import unicode_literals
 
-import re
-
 from .common import InfoExtractor
-from ..utils import (
+from ..compat import (
     compat_str,
     compat_urllib_parse,
+)
+from ..utils import (
     ExtractorError,
 )
 
@@ -13,7 +13,7 @@ from ..utils import (
 class FiveMinIE(InfoExtractor):
     IE_NAME = '5min'
     _VALID_URL = r'''(?x)
-        (?:https?://[^/]*?5min\.com/Scripts/PlayerSeed\.js\?(.*?&)?playList=|
+        (?:https?://[^/]*?5min\.com/Scripts/PlayerSeed\.js\?(?:.*?&)?playList=|
             5min:)
         (?P<id>\d+)
         '''
@@ -41,13 +41,8 @@ class FiveMinIE(InfoExtractor):
         },
     ]
 
-    @classmethod
-    def _build_result(cls, video_id):
-        return cls.url_result('5min:%s' % video_id, cls.ie_key())
-
     def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        video_id = mobj.group('id')
+        video_id = self._match_id(url)
         embed_url = 'https://embed.5min.com/playerseed/?playList=%s' % video_id
         embed_page = self._download_webpage(embed_url, video_id,
                                             'Downloading embed page')