Why do you think we should handle errors and exceptions in python code example

Example 1: how to print error in try except python

try:
  # some code
except Exception as e:
	print("ERROR : "+str(e))

Example 2: catch error python

import traceback

dict = {'a':3,'b':5,'c':8}
try:
  print(dict[q])
 
except:
  traceback.print_exc()
  
# This will trace you back to the line where everything went wrong. 
# So in this case you will get back line 5