Python __add__() magic method
Python __add__() function is one of the magic methods in Python that returns a new object(third) i.e. the addition of the other two objects. It implements the addition operator “+” in Python.
Python __add__() Syntax
Syntax: obj1.__add__(self, obj2)
- obj1: First object to add in the second object.
- obj2: Second object to add in the first object.
Returns: Returns a new object representing the summation of the other two objects.
Python __add__() magic method Example
Python __add__() method adds two objects and returns a new object as a resultant object in Python. The below example returns a new object,
Python3
class GFG: def __init__( self , val): self .val = val def __add__( self , val2): return GFG( self .val + val2.val) obj1 = GFG( "Beginner" ) obj2 = GFG( "ForBeginner" ) obj3 = obj1 + obj2 print (obj3.val) |
Output:
w3wiki
Python3
class GFG: def __init__( self , val): self .val = val obj1 = GFG( "Beginner" ) obj2 = GFG( "ForBeginner" ) obj3 = obj1 + obj2 print (obj3.val) |
Output:
Traceback (most recent call last): File "/home/d8b3b04f2954b8c46b64bc7dd37f6aa4.py", line 11, in <module> obj3 = obj1 + obj2 TypeError: unsupported operand type(s) for +: 'GFG' and 'GFG'
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