Python - Basics

I have written three python programs in increasing order of complexity.

First one is:

x=int(input("Enter a number"))

y=int(input("Enter another number"))

z=int(input("Enter third number"))

sum=x + y + z

print(sum)

The program reads three numbers (Integers) and finds their sum

class simple:

    def simple_one():

        print("Hello mukesh")

        print("Hello manjunath")

if __name__=="__main__":

    simple.simple_one()

This next program creates a simple class and calls a method on the class object.

The if statement equates __name__ to "__main__" and executes the method if so.

class simple():

    def __init__(self,name,age):

        self.name = name

        self.age = age

    def simple_one(self):

        print("Hello %s %s"%(self.name,self.age))

if __name__=="__main__":

    s = simple("mukesh",45)

    s.simple_one()

This next program above instantiates an object of

class simple by calling its constructor. Then a

method simple_one() on the created object.