return error message in python code example

Example 1: try except python

try:
  print("I will try to print this line of code")
except:
  print("I will print this line of code if an error is encountered")

Example 2: python defualt error handler

import sys
def my_except_hook(exctype, value, traceback):
    if exctype == KeyboardInterrupt:
        print "Handler code goes here"
    else:
        sys.__excepthook__(exctype, value, traceback)
sys.excepthook = my_except_hook