[nuevo] Complied with the code comments.

youtube_dl/extractor/nuevo.py

@@ -3,31 +3,35 @@ from __future__ import unicode_literals
 
 from .common import InfoExtractor
 
-from ..utils import float_or_none
+from ..utils import (
+    float_or_none,
+    xpath_text
+)
+
 
 class NuevoBaseIE(InfoExtractor):
-    def _extract_nuevo(self, config_url, video_id, info=None, ignore_hd=False):
-        if info is None:
-            info = {}
-
-        sdformats, hdformats = [], []
+    def _extract_nuevo(self, config_url, video_id):
         tree = self._download_xml(config_url, video_id, transform_source=lambda s: s.strip())
 
-        for child in tree:
-            tag, val = child.tag, child.text
+        title = xpath_text(tree, './title')
+        if title:
+            title = title.strip()
 
-            if tag == "file":
-                sdformats.append({"url": val})
-            elif tag == "filehd" and not ignore_hd:
-                hdformats.append({"url": val})
-            elif tag == "duration":
-                info["duration"] = float_or_none(val)
-            elif tag == "image":
-                info["thumbnail"] = val
-            elif tag == "title":
-                info["title"] = val.strip()
+        thumbnail = xpath_text(tree, './image')
+        duration = float_or_none(xpath_text(tree, './duration'))
 
-        info["id"] = video_id
-        info["formats"] = sdformats + hdformats
+        formats = []
+        for element_name, format_id in (('file', 'sd'), ('filehd', 'hd')):
+            video_url = tree.find(element_name)
+            video_url is None or formats.append({
+                'format_id': format_id,
+                'url': video_url.text
+            })
 
-        return info
+        return {
+            'id': video_id,
+            'title': title,
+            'thumbnail': thumbnail,
+            'duration': duration,
+            'formats': formats
+        }

youtube_dl/extractor/trollvids.py

@@ -11,7 +11,7 @@ import re
 
 
 class TrollvidsIE(NuevoBaseIE):
-    _VALID_URL = r"http://(?:www\.)?trollvids\.com/+video/+(?P<id>[0-9]+)/+(?P<title>[^?&]+)"
+    _VALID_URL = r'http://(?:www\.)?trollvids\.com/+video/+(?P<id>[0-9]+)/+(?P<title>[^?&]+)'
     IE_NAME = 'trollvids'
 
     def _real_extract(self, url):
@@ -19,17 +19,20 @@ class TrollvidsIE(NuevoBaseIE):
 
         video_id = match.group('id')
         raw_video_title = match.group('title')
-        video_title = compat_urllib_parse_unquote(raw_video_title)
-        url = "http://trollvids.com/video/%s/%s" % (video_id, raw_video_title)
-        config_url = "http://trollvids.com/nuevo/player/config.php?v=%s" % video_id
+        url = 'http://trollvids.com/video/%s/%s' % (video_id, raw_video_title)
+        config_url = 'http://trollvids.com/nuevo/player/config.php?v=%s' % video_id
 
-        info = {
-            "title": video_title,
-            "webpage_url": url,
-            "age_limit": 18
-        }
+        info = self._extract_nuevo(config_url, video_id)
 
-        return self._extract_nuevo(config_url, video_id, info)
+        info.update({
+            'webpage_url': url,
+            'age_limit': 18
+        })
+
+        if 'title' not in info:
+            info['title'] = compat_urllib_parse_unquote(raw_video_title)
+
+        return info
 
     _TESTS = [
         {

youtube_dl/extractor/trutube.py

@@ -21,7 +21,11 @@ class TruTubeIE(NuevoBaseIE):
 
     def _real_extract(self, url):
         video_id = self._match_id(url)
-        config_url = "https://trutube.tv/nuevo/player/config.php?v=%s" % video_id
+        config_url = 'https://trutube.tv/nuevo/player/config.php?v=%s' % video_id
 
-        # filehd is always 404
-        return self._extract_nuevo(config_url, video_id, ignore_hd=True)
+        info = self._extract_nuevo(config_url, video_id)
+
+        # filehd always 404s
+        info['formats'] = info['formats'][:1]
+
+        return info