Style fixes in YoutubeDL.py

Fixed some of the problems reported by pep8

youtube_dl/YoutubeDL.py

@@ -216,10 +216,10 @@ class YoutubeDL(object):
         If stderr is a tty file the 'WARNING:' will be colored
         '''
         if sys.stderr.isatty() and os.name != 'nt':
-            _msg_header=u'\033[0;33mWARNING:\033[0m'
+            _msg_header = u'\033[0;33mWARNING:\033[0m'
         else:
-            _msg_header=u'WARNING:'
-        warning_message=u'%s %s' % (_msg_header,message)
+            _msg_header = u'WARNING:'
+        warning_message = u'%s %s' % (_msg_header, message)
         self.to_stderr(warning_message)
 
     def report_error(self, message, tb=None):
@@ -275,11 +275,11 @@ class YoutubeDL(object):
             if template_dict['playlist_index'] is not None:
                 template_dict['playlist_index'] = u'%05d' % template_dict['playlist_index']
 
-            sanitize = lambda k,v: sanitize_filename(
+            sanitize = lambda k, v: sanitize_filename(
                 u'NA' if v is None else compat_str(v),
                 restricted=self.params.get('restrictfilenames'),
-                is_id=(k==u'id'))
-            template_dict = dict((k, sanitize(k, v)) for k,v in template_dict.items())
+                is_id=k == u'id')
+            template_dict = dict((k, sanitize(k, v)) for k, v in template_dict.items())
 
             filename = self.params['outtmpl'] % template_dict
             return filename
@@ -406,8 +406,8 @@ class YoutubeDL(object):
             self.to_screen(u"[%s] playlist '%s': Collected %d video ids (downloading %d of them)" %
                 (ie_result['extractor'], playlist, n_all_entries, n_entries))
 
-            for i,entry in enumerate(entries,1):
-                self.to_screen(u'[download] Downloading video #%s of %s' %(i, n_entries))
+            for i, entry in enumerate(entries, 1):
+                self.to_screen(u'[download] Downloading video #%s of %s' % (i, n_entries))
                 extra = {
                     'playlist': playlist,
                     'playlist_index': i + playliststart,
@@ -446,7 +446,7 @@ class YoutubeDL(object):
                 filter_f = lambda f: f['ext'] == format_spec
             else:
                 filter_f = lambda f: f['format_id'] == format_spec
-            matches = list(filter(filter_f ,available_formats))
+            matches = list(filter(filter_f, available_formats))
             if matches:
                 return matches[-1]
         return None
@@ -480,7 +480,7 @@ class YoutubeDL(object):
                 format['format'] = u'{id} - {res}{note}'.format(
                     id=format['format_id'],
                     res=self.format_resolution(format),
-                    note = u' ({})'.format(format['format_note']) if format.get('format_note') is not None else '',
+                    note=u' ({})'.format(format['format_note']) if format.get('format_note') is not None else '',
                 )
 
         if self.params.get('listformats', None):
@@ -642,7 +642,7 @@ class YoutubeDL(object):
             infofn = filename + u'.info.json'
             self.report_writeinfojson(infofn)
             try:
-                json_info_dict = dict((k, v) for k,v in info_dict.items() if not k in ['urlhandle'])
+                json_info_dict = dict((k, v) for k, v in info_dict.items() if not k in ['urlhandle'])
                 write_json_file(json_info_dict, encodeFilename(infofn))
             except (OSError, IOError):
                 self.report_error(u'Cannot write metadata to JSON file ' + infofn)
@@ -712,7 +712,7 @@ class YoutubeDL(object):
         keep_video = None
         for pp in self._pps:
             try:
-                keep_video_wish,new_info = pp.run(info)
+                keep_video_wish, new_info = pp.run(info)
                 if keep_video_wish is not None:
                     if keep_video_wish:
                         keep_video = keep_video_wish