Issue 5844 - Remove redundant parentheses in sitescripts and abpsembly

sitescripts/subscriptions/knownIssuesParser.py

 # This file is part of the Adblock Plus web scripts,
 # Copyright (C) 2006-present eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ skipping 168 matching lines @@
                 ruleset.checkValidity()
                 rulesets.append(ruleset)
             ruleset = Ruleset(line[1:len(line) - 1])
         else:
             if ruleset == None:
                 print >>sys.stderr, 'Found line %s before start of a ruleset' % line
                 continue
             if line.find('=') < 0:
                 print >>sys.stderr, 'Unrecognized line %s' % line
                 continue
-            (key, value) = line.split('=', 1)
+            key, value = line.split('=', 1)
             key = key.rstrip()
             value = value.lstrip()
             if key == 'url':
                 ruleset.url = value
             else:
                 ruleset.addRule(rules, key, value)
     return (rules, rulesets)
 
 
 def findMatches(it, lang):
     global supportedKeys
 
-    (rules, rulesets) = getRules()
+    rules, rulesets = getRules()
 
     for line in it:
         match = re.search(r'<([\w\-]+)\s*(.*?)\s*/?>([^<>]*)', line)
         if not match:
             continue
 
         tag = match.group(1)
         attrText = match.group(2)
         text = match.group(3).strip()
 
         attrs = {}
         for match in re.finditer(r'(\w+)="([^"]*)"', attrText):
             attrs[match.group(1)] = match.group(2).strip().replace('&lt;', '<').replace('&gt;', '>').replace('&quot;', '"').replace('&amp;', '&')
 
         for key, t in supportedKeys.iteritems():
             if len(t) == 3:
-                (requiredTag, requiredAttrs, requiredValue) = t
+                requiredTag, requiredAttrs, requiredValue = t
             else:
-                (requiredTag, requiredAttrs) = t
+                requiredTag, requiredAttrs = t
                 requiredValue = None
             requiredAttrs = requiredAttrs.split(' ')
             if requiredTag != tag:
                 continue
 
             foundAttrs = []
             for attr in requiredAttrs:
                 if attr in attrs:
                     foundAttrs.append(attrs[attr])
             if len(foundAttrs) != len(requiredAttrs):
                 continue
 
             value = ' '.join(foundAttrs)
             if requiredValue != None:
                 if requiredValue != value:
                     continue
                 value = text
 
             checkMatch(rules, key, value)
     return extractMatches(rules, rulesets, lang)