title: Error handling using integers as input
body: <p>Ive set up this program that checks the mark out of 100 for a test.  If the user inputs less than 60 it should say fail if more than 59, pass.</p>
  
  <pre><code>mark = int(input("Please enter the exam mark out of 100 "))
  if mark &lt; 60:
      print("\nFail")
  elif mark &lt; 101:
      print("\nPass")
  else:
      print("\nThe mark is out of range")
  </code></pre>
  
  <p>how do i get the program not to have errors if the user does not input the Integer.</p>
  
  <p>Please help, is there a quick solution that 14 year olds would understand?</p>