Exception handling with try, except, else, and finally

• Try: This block will test the excepted error to occur
• Except:  Here you can handle the error
• Else: If there is no exception then this block will be executed
• Finally: Finally block always gets executed either exception is generated or not

An Exception is an Unexpected Event, which occurs during the execution of the program. It is also known as a run time error. When that error occurs, Python generates an exception during the execution and that can be handled, which prevents your program from interrupting.

Example: In this code, The system can not divide the number with zero so an exception is raised. 

Output

Traceback (most recent call last):
  File "/home/8a10be6ca075391a8b174e0987a3e7f5.py", line 3, in <module>
    print(a/b)
ZeroDivisionError: division by zero