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Py: 9. Python Exception Handling

 An exception can be defined as an unusual condition in a program resulting in the interruption in the flow of the program. Python provides a way to handle the exception so that the code can be executed without any interruption.

Problem:- 

a = int(input("Enter a:"))    
b = int(input("Enter b:"))    
c = a/b  
print("a/b = %d" %c)    
    
#other code:    
print("Hi I am other part of the program")  
Output:- 
Enter a:10
Enter b:0
Traceback (most recent call last):
  File "exception-test.py", line 3, in <module>
    c = a/b;
ZeroDivisionError: division by zero  

Solution:- 
try:  
    a = int(input("Enter a:"))    
    b = int(input("Enter b:"))    
    c = a/b  
except:  
    print("Can't divide with zero") 
#other code:    
print("Hi I am other part of the program")  
Output:-
Enter a:10
Enter b:0
Can't divide with zero   
Hi I am other part of the program

Common Exceptions:- 
Type Error
Type Error Exception is raised when two different or unrelated types of operands or objects are combined.

Name Error
A NameError is raised when you try to use a variable or a function name that is not valid.

Index Error
An IndexError is raised when a sequence reference is out of range.

Exercises:- 


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