title: Making a roulette game, keep getting error in python
body: <p>I'm fairly new to python, so sorry if this is a bit basic.
  I have undertaken making a roulette game to improve my programming skills and have come across a very strange error. At first, when I wanted to print the player's balance at the end of the roll and once the results were checked, it printed out the array that holds all the red numbers. I looked over the code that was defining the <code>balance</code> variable but there was nothing that looked like it might affect it. 
  I for some reason thought that defining <code>balance</code> as <code>int(100)</code> instead of <code>100</code> might fix it but i instead got this error:<code>TypeError: checkresults() missing 1 required positional argument: 'bet'</code> I deleted the <code>int</code> in <code>balance</code> and it still persisted. For those wondering, I make <code>checkresults</code> use <code>bet</code> and have even tried moving the place where it goes in the list of variables used but still no fix. <code>balance = checkresults(bet, bet_choice, number, balance, red, black, green, first, second, third)</code> as you can see, it's the first variable it uses. The full code for <code>checkresults</code> is here: </p>
  
  <pre><code>def checkresults(self, bet_choice, number, balance, red, black, green, first, second, third, bet):
  if bet_choice == "number":
      if bet == number:
          balance = balance + (bet_amount*14)
          print("You Won!")
      else:
          print("You Lost")
  elif bet_choice == "colour":
      if bet == "red":
          if number in red:
              balance = balance + (bet_amount*2)
              print("You Won!")
          else:
              print("You Lost")
      elif bet == "black":
          if number in black:
              balance = balance + (bet_amount*2)
              print("You Won!")
          else:
              print("You Lost")
      else:
          if number in green:
              balance = balance + (bet_amount*14)
              print("You Won!")
          else:
              print("You Lost")
  elif bet_choice == "third":
      if bet == "1st":
          if number in first:
              balance = balance + (bet_amount*3)
              print("You Won!")
          else:
              print("You Lost")
      elif bet == "2nd":
          if number in second:
              balance = balance + (bet_amount*3)
              print("You Won!")
          else:
              print("You Lost")
      elif bet == "3rd":
          if number in third:
              balance = balance + (bet_amount*3)
              print("You Won!")
          else:
              print("You Lost")
  return balance
  </code></pre>
  
  <p>the value for bet is decided by this:</p>
  
  <pre><code>def choosebet():
  bet_choice = input("Would you like to bet on a number, colour, or a third? ")
  if bet_choice == "number":
      bet = int(input("Which number would you like to bet on? "))
  elif bet_choice == "colour":
      bet = input("Which colour would you like to bet on?")
  else:
      bet = input("Which third would you like to bet on?")
  return bet, bet_choice
  </code></pre>