code: def modify_karma(self, words):
          
  
          # 'user': karma
          k = defaultdict(int)
  
          if words:
              # For loop through all of the group members
              for word_tuple in words:
                  word = word_tuple[0]
                  ending = word[-1]
                  # This will either end with a - or +, if it's a - subract 1
                  # kara, if it ends with a +, add 1 karma
                  change = -1 if ending == '-' else 1
                  # Now strip the ++ or -- from the end
                  if '-' in ending:
                      word = word.rstrip('-')
                  elif '+' in ending:
                      word = word.rstrip('+')
                  # Check if surrounded by parens, if so, remove them
                  if word.startswith('(') and word.endswith(')'):
                      word = word[1:-1]
                  # Finally strip whitespace
                  word = word.strip()
                  # Add the user to the dict
                  if word:
                      k[word] += change
          return k
docs: Given a regex object, look through the groups and modify karma
          as necessary