Different Types of Comparator Techniques In Python

Hitendra Feb 23, 2025
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Comparator Techniques in Python

Python offers built-in functions and modules to handle comparisons effectively.

a. Using Built-in Comparison Operators

You can override comparison magic methods like __lt__, __eq__, etc.

Example:

class Product:
    def __init__(self, name, price):
        self.name = name
        self.price = price

    def __lt__(self, other):
        return self.price < other.price

b. Using sorted() with Custom Key Functions

Example:

products = [Product("Apple", 1.2), Product("Banana", 0.5)]
sorted_products = sorted(products, key=lambda x: x.name)

Best Practices

  • Use magic methods for natural ordering.

  • Use sorted() with key functions for custom logic.