Python Coding challenge - Day 653| What is the output of the following Python Code?

 

Code Explanation:

1. Importing partial from functools

from functools import partial

Explanation:

This line imports the partial function from the functools module.

partial is used to "freeze" some portion of a function’s arguments and/or keywords — resulting in a new function with fewer parameters.

2. Defining the subtract Function

def subtract(a, b):

    return a - b

Explanation:

A function subtract is defined, which takes two arguments: a and b.

It returns the result of a - b.

Examples:

subtract(10, 3) returns 7

subtract(3, 10) returns -7

3. Creating a Partial Function

minus_five = partial(subtract, b=5)

Explanation:

partial(subtract, b=5) creates a new function where the value of b is fixed at 5.

The result is a new function that only needs the a argument.

minus_five(a) will now return a - 5.

It's equivalent to:

def minus_five(a):

    return subtract(a, 5)

4. Calling the Partial Function

print(minus_five(12))

Explanation:

You're calling minus_five(12) → internally this does subtract(12, 5)

Result: 12 - 5 = 7

So the output is:

7

Final Output

7

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