improve coding style

youtube_dl/YoutubeDL.py

@@ -855,7 +855,7 @@ class YoutubeDL(object):
 
             return self.process_ie_result(
                 new_result, download=download, extra_info=extra_info)
-        elif result_type == 'playlist' or result_type == 'multi_video':
+        elif result_type in ('playlist', 'multi_video'):
             # We process each entry in the playlist
             playlist = ie_result.get('title') or ie_result.get('id')
             self.to_screen('[download] Downloading playlist: %s' % playlist)

youtube_dl/compat.py

@@ -2692,7 +2692,7 @@ else:
                 userhome = pwent.pw_dir
             userhome = userhome.rstrip('/')
             return (userhome + path[i:]) or '/'
-    elif compat_os_name == 'nt' or compat_os_name == 'ce':
+    elif compat_os_name in ('nt', 'ce'):
         def compat_expanduser(path):
             """Expand ~ and ~user constructs.
 

youtube_dl/downloader/rtmp.py

@@ -169,7 +169,7 @@ class RtmpFD(FileDownloader):
             self.report_error('[rtmpdump] Could not connect to RTMP server.')
             return False
 
-        while (retval == RD_INCOMPLETE or retval == RD_FAILED) and not test and not live:
+        while retval in (RD_INCOMPLETE, RD_FAILED) and not test and not live:
             prevsize = os.path.getsize(encodeFilename(tmpfilename))
             self.to_screen('[rtmpdump] %s bytes' % prevsize)
             time.sleep(5.0)  # This seems to be needed

youtube_dl/extractor/bbc.py

@@ -409,7 +409,7 @@ class BBCCoUkIE(InfoExtractor):
                 description = smp_config['summary']
                 for item in smp_config['items']:
                     kind = item['kind']
-                    if kind != 'programme' and kind != 'radioProgramme':
+                    if kind not in ('programme', 'radioProgramme'):
                         continue
                     programme_id = item.get('vpid')
                     duration = int_or_none(item.get('duration'))
@@ -450,7 +450,7 @@ class BBCCoUkIE(InfoExtractor):
 
         for item in self._extract_items(playlist):
             kind = item.get('kind')
-            if kind != 'programme' and kind != 'radioProgramme':
+            if kind not in ('programme', 'radioProgramme'):
                 continue
             title = playlist.find('./{%s}title' % self._EMP_PLAYLIST_NS).text
             description_el = playlist.find('./{%s}summary' % self._EMP_PLAYLIST_NS)

youtube_dl/extractor/common.py

@@ -1779,7 +1779,7 @@ class InfoExtractor(object):
                     if content_type == 'text':
                         # TODO implement WebVTT downloading
                         pass
-                    elif content_type == 'video' or content_type == 'audio':
+                    elif content_type in ('video', 'audio'):
                         base_url = ''
                         for element in (representation, adaptation_set, period, mpd_doc):
                             base_url_e = element.find(_add_ns('BaseURL'))

youtube_dl/extractor/rudo.py

@@ -26,7 +26,7 @@ class RudoIE(InfoExtractor):
     }
 
     @classmethod
-    def _extract_url(self, webpage):
+    def _extract_url(cls, webpage):
         mobj = re.search(
             r'<iframe[^>]+src=(?P<q1>[\'"])(?P<url>(?:https?:)?//rudo\.video/vod/[0-9a-zA-Z]+)(?P=q1)',
             webpage)

youtube_dl/extractor/viewlift.py

@@ -68,7 +68,7 @@ class ViewLiftEmbedIE(ViewLiftBaseIE):
             type_ = source.get('type')
             ext = determine_ext(file_)
             format_id = source.get('label') or ext
-            if all(v == 'm3u8' or v == 'hls' for v in (type_, ext)):
+            if all(v in ('m3u8', 'hls') for v in (type_, ext)):
                 formats.extend(self._extract_m3u8_formats(
                     file_, video_id, 'mp4', m3u8_id='hls'))
             else:

youtube_dl/extractor/vlive.py

@@ -70,9 +70,9 @@ class VLiveIE(InfoExtractor):
         status, long_video_id, key = params[2], params[5], params[6]
         status = remove_start(status, 'PRODUCT_')
 
-        if status == 'LIVE_ON_AIR' or status == 'BIG_EVENT_ON_AIR':
+        if status in ('LIVE_ON_AIR', 'BIG_EVENT_ON_AIR'):
             return self._live(video_id, webpage)
-        elif status == 'VOD_ON_AIR' or status == 'BIG_EVENT_INTRO':
+        elif status in ('VOD_ON_AIR', 'BIG_EVENT_INTRO'):
             if long_video_id and key:
                 return self._replay(video_id, webpage, long_video_id, key)
             else:

youtube_dl/postprocessor/ffmpeg.py

@@ -552,7 +552,7 @@ class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
             sub_filenames.append(old_file)
             new_file = subtitles_filename(filename, lang, new_ext)
 
-            if ext == 'dfxp' or ext == 'ttml' or ext == 'tt':
+            if ext in ('dfxp', 'ttml', 'tt'):
                 self._downloader.report_warning(
                     'You have requested to convert dfxp (TTML) subtitles into another format, '
                     'which results in style information loss')

youtube_dl/postprocessor/metadatafromtitle.py

@@ -26,7 +26,7 @@ class MetadataFromTitlePP(PostProcessor):
             regex += r'(?P<' + match.group(1) + '>.+)'
             lastpos = match.end()
         if lastpos < len(fmt):
-            regex += re.escape(fmt[lastpos:len(fmt)])
+            regex += re.escape(fmt[lastpos:])
         return regex
 
     def run(self, info):