Python Coding challenge - Day 712| What is the output of the following Python Code?

 

Code Explanation:

1) from dataclasses import dataclass

Imports the dataclass decorator from Python’s dataclasses module.

This decorator auto-generates methods (__init__, __repr__, __eq__, etc.) for the class.

2) @dataclass(order=True)

Applies @dataclass to the Person class.

order=True means Python also auto-generates ordering methods (__lt__, __le__, __gt__, __ge__).

Ordering is based on the order of fields declared in the class.

3) class Person:

Defines a class Person.

It will represent a person with age and name.

4) age: int and name: str

These are dataclass fields with type hints.

Field order matters!

Here, comparisons (<, >, etc.) will check age first.

If age is the same, then name will be compared next.

5) Auto-generated __init__

Python generates this constructor for you:

def __init__(self, age: int, name: str):

    self.age = age

    self.name = name

6) p1 = Person(25, "Alice")

Creates a Person object with:

p1.age = 25

p1.name = "Alice"

7) p2 = Person(30, "Bob")

Creates another Person object with:

p2.age = 30

p2.name = "Bob"

8) print(p1 < p2)

Since order=True, Python uses the generated __lt__ (less-than) method.

First compares p1.age (25) with p2.age (30).

25 < 30 → True.

No need to check name, because ages are already different.

Output

True

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