title: Score Doesn't work here? - Python
body: <p>I am trying to keep a score in this game, so I set a score variable and every time an answer is answered correctly, it adds + 1 point to score and if you get an incorrect answer, it will deduct a point. When i print score at the end, it is still equal to 0.</p>
  
  <pre><code>score = 0
  q1answer = ("metallica", "slayer", "megadeth", "anthrax")
  
  answerinput = str(input("name one of the 'Big Four' metal bands'"))
  
  if answerinput.lower() in q1answer:
      print ("You got the right answer!")
      score + 1
  
  else:
      print ("That is the wrong answer...")
      score - 1
  print (score)
  </code></pre>