# Author: OMKAR PATHAK

# In this example we will see what are Python Magic Methods (or Special Methods) and how to overload them

# Now why these methods are called Magic or Special methods anyway? The reason is that these

# methods are invoked directly after creation of a class instance. For example:

# __init__ is a Magic method. Also __str__, __repr__, __add__ are all magic methods.

class Employee(object):

def __init__(self, firstname, lastname, salary = 0):

self.firstname = firstname

self.lastname = lastname

self.salary = salary

def __str__(self):

return 'Full Name: ' + self.firstname + ' ' + self.lastname

# Implements behaviour for built in type comparison to int

def __int__(self):

return self.salary

# For overloading the (==)

def __eq__(self,other):

return self.salary==other.salary

# For overloading the (+)

def __add__(self, other):

return self.salary + other.salary

# For overloading the (*)

def __mul__(self, other):

return self.salary * other.salary

if __name__ == '__main__':

Omkar = Employee('Omkar', 'Pathak', 1000)

Jagdish = Employee('Jagdish','Pathak', 2000)

print(Omkar) # Full Name: Omkar Pathak (This output because of __str__ method overloading)

print(Jagdish) # Full Name: Jagdish Pathak

print(Omkar + Jagdish) # 3000 (This output because of __add__ method overloading)

print(Omkar * Jagdish) # 2000000 (__mul__)

print(int(Omkar)) # 1000 (__int__)

print(int(Jagdish)) # 2000 (__int__)

print(Omkar==Jagdish)