Python automatically calls the __eq__ method of a class when you use the == operator to compare the instances of the class. By default, Python uses the is operator if you don’t provide a specific implementation for the __eq__ method. The following shows how to implement the __eq__ method in the Person class that returns True if two person ...

When writing custom classes it is often important to allow equivalence by means of the == and != operators. In Python, this is made possible by implementing the __eq__ and __ne__ special methods, respectively. The easiest way I've found to do this is the following method: def __init__(self, item): self.item = item. def __eq__(self, other):

Oct 10, 2023 · This guide will show how we handle the __eq__() method in Python. We’ll comp different objects and learn the functionality of this particular method. Let’s dive right into it. First, __eq__() is a dunder/magic method, as you can see that …

Aug 18, 2023 · The __eq__ is a dunder method in Python classes which stands for equality, meaning it defines the functionality of the equality operator (==). It is used when we need to compare multiple objects.

Python Classes __eq__() method The __eq__() method is a special method that allows objects of the same or compatible classes to compare each other for equality. This is the method that gets called when the equality comparison == operator is used to compare objects.

Learn how to use the __eq__ magic method in Python to define custom equality criteria for class instances. Take a look at some theory and quick examples!

Aug 16, 2021 · To define how to compare two objects of our class, we need to implement the dunder method __eq__(). When we use the expression a==b Python invokes A.__eq__(B) since it exists. In our example, we implement this method as shown below: In this way, we “tell” Python to compare the objects of our class depending on the attribute value.

Apr 8, 2025 · We'll cover basic usage, custom comparisons, hash consistency, inheritance, and practical examples. The __eq__ method defines behavior for the equality operator (==). It should return True if objects are equal, False otherwise, or NotImplemented if …

Python__eq__ is a special method defined in a class that allows you to compare two objects of that class for equality. When you use the == operator to compare two objects, Python will call the __eq__ method on the left side of the operator to determine if the objects are equal.

Jul 18, 2017 · It seems one way of performing this is to define an auxillary __members function and to use that in defining __hash__ and __eq__. This way, there is no duplication: def __init__(self, a, b): self.a = a. self.b = b. def __members(self): return (self.a, self.b) def __eq__(self, other): if type(other) is type(self):