Python Tutorial for Beginners 50 - Python Operator Overloading

In this Python Programming Tutorial for Beginners video I am going to show you How to use Operator Overloading in Python. Overloading occurs when the same operator or function name is used with different signatures. In Python Programmer can use some operator symbols to define special member functions of a class. Operator overloading Provides convenient notations for object behaviors.

Python Operator Overloading
Operator Expression FUNCTION
Math Operator Overloading
Addition(+) p1 + p2 p1.__add__(p2)
Subtraction(-) p1 - p2 p1.__sub__(p2)
Multiplication(*) p1 * p2 p1.__mul__(p2)
Power(**) p1 ** p2 p1.__pow__(p2)
Division(/) p1 / p2 p1.__truediv__(p2)
Floor Division(//) p1 // p2 p1.__floordiv__(p2)
Remainder (modulo)(%) p1 % p2 p1.__mod__(p2)
Bitwise Operator Overloading
Bitwise AND(&) p1 & p2 p1.__and__(p2)
Bitwise OR(|) p1 | p2 p1.__or__(p2)
Bitwise XOR(^) p1 ^ p2 p1.__xor__(p2)(+)
Bitwise NOT(~) ~p1 p1.__invert__()
Comparison Operator Overloading

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[nilupulperera]

Very interesting and comprehensive video series. Thank you very much

[UsmanAli-voix]

Very nice tutorial. Thank you very much indeed for all this good work. Just one small comment for the circle example. From my point of view, adding 2 circles should be done by adding up the areas of those circles (if adding circles makes sense at all). As such the add method should return Circle(math.sqrt(pow(self.__radius, 2) + pow(circle_object.__radius, 2))).

[arshadshaik]

I think little bit explanation
in statement return circle(self.__radius + circle_object.__radius)
you said that self.__radius value is current class's (i think self.__radius=3)
wher we are passing the object using the argument 'circle_object'

[babacarndoye]

Good job right there, but I have a question: can u make some functions overloads with the same name but just changing type of argument and number of argument? 😊

PS: I come from C++

[MrClaudiograssi]

Are you going to publish Debugging Python?

[concretedonkey]

I'm confused why we would use __str__() instead of creating a method with
a more meaningful name. For example instead of calling the method __str__
()
i could call it circle_area().

[latharadha]

hi thanks for sharing. actually I saw your python video which you posted on 2014 . there are 17 videos . what is the difference between that and this video's. I need one information whether that 17 videos are enough or I need to study these videos also to complete python please guide me . because now only I start to learn python from your videos I completed that 17 videos . Is there is only 17 videos in that tutorial or I missed anything . please reply me

[ulrichbra]

Very nice tutorial. Thank you very much indeed for all this good work. Just one small comment for the circle example. From my point of view, adding 2 circles should be done by adding up the areas of those circles (if adding circles makes sense at all). As such the add method should return Circle(math.sqrt(pow(self.__radius, 2) + pow(circle_object.__radius, 2))).