title: HP - EnemyAttack Throws error at me :L
body: <p>This is the code I am using:</p>
  
  <pre><code>def EnemyAttack():  
    print("The enemy",enemy, "Attacked!")  
    HP - EnemyAttack  
    if HP &lt; 0 or HP == 0:  
      print("You Were torn to pieces by the",enemy,".")    
    else:   
      print("You managed to withstand the attack by the",enemy, "It growls in  
   frustration.")  
      BattleChoice()  
  </code></pre>
  
  <p>... and the error I receive when running:</p>
  
  <blockquote>
    <p>Traceback (most recent call last):     File "python", line 83, in
         File "python", line 62, in EnemyAttack   TypeError:
    unsupported operand type(s) for -: 'int' and 'function'</p>
  </blockquote>