Errors and Built in Exception and Namespace and Scope

  

       PYTHON

       Errors and Built in Exception and Namespace and Scope

       Fill in the blanks

 

       1.a=2,b=2.print('a=',id(a))= 505910976. print('b=',id(b)) =  505910976.

       2.a='hai'.b='hello'.c='hai'.id(a)=36027328.print(id(c))= 36027328.

       3.Collections of names is called namespace.

 

       Answer the following questions

                                                        (4 marks)

      

       1.Write a program for syntaxError, ZeroDivisionError in  Error handling

try:

        N1,N2=eval(input("enter 2 numbers,seperated by comma:"))

        res=N1/N2

except ZeroDivisionerror:

        print("division by zero is error!!")

        res=0

except Syntaxerror:

            print("comma is missing.Input Value seperated by comma like this 3,4")

#all other exception

except:

        print("Wrong input")

else:

        print("no exception")

finally:

        print("N1 is{},N2 is{},Result is{}".format(N1,N2,res))

       2.Write a program to find positive or negative number in Error handling

     

class MyError(Exception):        

         pass

class ZeroValueError(Exception):

          pass

while True:

          try:

                  i_num=int(input("enter a number:"))

                  if i_num==0:

                            raise ZeroValueError

                  if i_num<0:

                            raise MyError

                  else:

                    print("valid input")

                    break

          except MyError:

                  print("value should not  be negative number........,try again!")

          except ZeroValueError:

                  print("value should not be  Zero........,try again!")

       Answer the following questions

                                                        (10 marks)

       1.Write a program for Guess the number in Error handling

class Error(Exception):

        pass

class ValueTooSmallError(Error):

        pass

class ValueTooLargeError(Error):

        pass

while True:

        try:   

                i_num=int(input("enter a number:"))

                number=10 

                if i_num<number:

                        raise ValueTooSmallError

                elif i_num>number:

                        raise ValueTooLargeError

                break

        except ValueTooSmallError:

              print("this value is too small,try again!")

              print()

        except ValueTooLargeError:

             print("this value is too large,try again!")

             print()

print("Congratulations!You guessed it correctly.")