Python OOPs

Examples

Others

Python OOPs

Examples

Others


Python Exception Handling


Exception handling is the way to handle the runtime errors.In Python, runtime errors can be handle using try and except block.

Syntax 
try:
  #Block of code
except:
  #Handle the error
else:
  #Execute if no exception
finally:
  #Execute always executes
Example 
try:
    a=10
    c=a+b
    print(c)
except Exception as e:
    print(e)
finally:
    print("Program Complete")
Output
name 'b' is not defined Program Complete
Try except with else block 
try:
    a=int(input("Enter Number 1: "))
    b=int(input("Enter Number 2: "))
    c=a/b
except Exception as e:
    print(e)
else:
    print("Result :",a)
Output
Enter Number 1: 25 Enter Number 2: 5 Result : 25
Common Exceptions Handling 
try:
    a=10/0#ZeroDivisionError

    x=int("a")#ValueError

    x={"Name":"Tom"}
    print(x["age"])#KeyError

    add()#NameError
    a=10+"ad"#TypeError

    s=[1,2,4]
    print(s[5])#IndexError

    f=open("sample.txt","r")#IOError

except ZeroDivisionError as err:
    print(err)
except ValueError as err:
    print(err)
except KeyError as err:
    print(err)
except NameError as err:
    print(err)
except TypeError as err:
    print(err)
except IndexError as err:
    print(err)
except IOError as err:
    print(err)