title: Python if statement not working inside function
body: <p>I'm trying to make a guess the number game in python. However, in the again() function I cannot seem to get the if statement to run.</p>
  
  <p>When I don't use the again function and copy and paste all the code in the respective positions, it works fine. However when I use the again function, the "play again?" question is asked but the if statement is ignored, causing the while loop to continue endlessly. I have tried using the global function but on the second time I input a guess, it comes up with TypeError: 'str' object is not callable .</p>
  
  <pre><code>import random
  
  def guess():
      global num
      num = random.randint(1,3)
      guessat  = input("Out of 1 to 3, which number do you guess? ")
      return(guessat)
  
  def again():
      global again
      again = input("Play again? ")
      if again in ["y","yes"]:
          guessing = True
      else:
          guessing = False
  
  print("Welcome to Guess the Number!")
  
  guessing = True
  
  while guessing:
      guessy = guess()
      guessy = int(guessy)
      if guessy == num:
          print("You got it right!")
          again()
  
      elif guessy != num:
          print("Wrong number!")
          again()
  quit()
  </code></pre>
  
  <p>When I input "no" or anything else for the question "Play Again?" I expect the program to exit the while loop and quit.</p>