Multilevel inheritance in python

Multilevel inheritance:

• Multilevel inheritance has derived from the class itself and derives the subclass further.
• It means one base class derived from intermediate class, that intermediate class derived the derived class.

Syntax:

1. class a:
            //Base class
   class b: class a
            //Intermediate class
   
   
   class c: class b
             //Derived class
   Object creation:
   Object_name=last_class_name() ;
   object_name.function(parameter list);

Example:

1. #Multi level inheritance

   class bank:

       def pin_set(self):

           lst=[1111,1234,2222]

           print("\tWelcome to XXX bank")

           return lst

   class getvalue(bank):

       def get_data(self):

           pin=int(input("Enter pin number:"))

           return pin

   class pin_validation(getvalue):

       def verification(self,pin,lst):

           if pin in lst:

               print("Enter your choice:\n1.Cash widrawel\n2.Cash deposite\n3.Mini statement")

           else:

               print("Invalid pin")

   b=pin_validation()

   l=[]

   l=b.pin_set()

   p=b.get_data()

   b.verification(p,l)

Output:

If condition:

Else condition:

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