METHOD OVERLOADING IN PYTHON

The concept of defining multiple methods with the same name, different number of arguments within a same class is known as method overloading.

Note - Python doesn’t support method overloading.

Example –

class A:
    def m1(self,a):
        print 'in one parameter m1 of A'
    def m1(self,a,b):
        print 'in two parameter m1 of A'
A1=A()
A1.m1(5,10)
A1.m1(5)

Output –

in two parameter m1 of A

Traceback (most recent call last):

  File "C:/Users/om/PycharmProjects/Pythonn/if3.py", line 8, in <module>

    A1.m1(5)

TypeError: m1() takes exactly 3 arguments (2 given)

Example –

class A:
    def m1(self,*args):
        for p in args:
            print p
A1=A()
A1.m1(10,20)
A1.m1(100,200,300)
A1.m1('rakesh','bamunimaidam','guwahati','assam')

Output –

10

20

100

200

300

rakesh

bamunimaidam

guwahati

assam

Note - * is not method overloading.

Example –

class A:
    def add(self,instanceof,*args):
        if instanceof == 'int':
            result = 0
        if instanceof == 'str':
            result=' '
        for i in args:
            result = result+i
        print result
A1=A()
A1.add('int',10,20,30)
A1.add('str','rakesh','kumar')

Output –

60

rakeshkumar