title: how to get python 3 to accept both integer and string answers
body: <p>I need the code to be able to accept both the integer and string version of 1 and 2. I tried using str() and int() on the input() but it doesn't work and only accepts the integer form of 1 and 2. If the user's input isn't 1, one, 2, or two, i need the game to exit. Any help is appreciated. </p>
  
  <pre><code>print ('\n If you want to play the first game, enter 1.')
  print ('I you want to play the second game, enter 2.')
  
  gamechoice = str(int(input('\nPlease select the difficulty of the game: '))).lower()
  if gamechoice == 1 or 'one':
      Firstgame()
  elif gamechoice == 2 or 'two':
      secondgame()
  else:
      print ('\nSorry i dont undrstand')
      sys.exit(0)
  </code></pre>