CS 111 - 3/8/18

Office Hours next Tuesday will need gto be adjusted.
  - Look for an email with details.



Error Messages - How to quit a program?


System Exit library function

   sys.exit( 1 )

The integer given by the parameter is sent to the computer
  system.  Since we are doing nothing with that value, if can
  be any value we desire.

usage:

  if ( <errorCondition> ) :
     print "Appropriate and MEANINGFUL Error Message"
     sts.exit(1)