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Exception Handling in Python

Answer»

Exception Handling is used to handle situations in our program flow, which can inevitably crash our program and hamper its normal working. It is done in Python using try-except-finally keywords.



  • try: The code in try section is the part of the code where the code is to be tested for exceptions.


  • except: Here, the cases in the original code, which can break the code, are written, and what to do in that scenario by the program.


  • finally: The code in the finally block will execute whether or not an exception has been encountered by the program.

The same has been illustrated in the image below:

Example:

# divide(4, 2) will return 2 and print Division Complete
# divide(4, 0) will print error and Division Complete
# Finally block will be executed in all cases
def divide(a, denominator):
try:
return a / denominator
except ZeroDivisionError as e:
print('Divide By Zero!! Terminate!!')
finally:
print('Division Complete.')


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