title: Simple python loop error
body: <pre><code>print("Hi im a PC and my name is Micro, What's your name?")
  name = raw_input("")
  print("Hi " + name + " how are you, are you good?")
  answer = (raw_input(""))
  if answer == "yes":
             print("That's good to hear!")
  elif answer == "no":
             print("Oh well")
  while answer != ("yes","no")
             print("Sorry, you didnt answer the question properly, Please answer with a yes or no.")
  print"I'm going to sleep for 5 seconds and then i'll be back."
  import time
  time.sleep(5)
  print"I'm back!"
  </code></pre>
  
  <p>need to create a loop for the yes or no bit, anyone know how?
  thanks for any help!</p>