Python Coding challenge - Day 641| What is the output of the following Python Code?

 

Code Explanation:

1. Importing the UUID Module

import uuid

Purpose: This line imports Python’s built-in uuid module.

Why: The module allows you to generate universally unique identifiers (UUIDs).

Used for: Creating random IDs that are extremely unlikely to collide.

2. Defining the UUID Generator Function

def uuid_generator(n):

Purpose: This defines a function named uuid_generator that takes an integer argument n.

Parameter: n is the number of UUIDs you want to generate.

3. Generating UUIDs with a Generator

    for _ in range(n):

        yield uuid.uuid4()

for _ in range(n):

Loops n times.

The underscore _ is used as a throwaway variable since the loop variable itself isn't needed.

yield uuid.uuid4()

uuid.uuid4() generates a random UUID.

yield makes this a generator function, which returns one UUID at a time instead of building a full list in memory.

Each time you iterate over this generator, it gives you the next UUID.

4. Converting Generator to List and Getting Length

print(len(list(uuid_generator(5))))

uuid_generator(5): Calls the function to create a generator that will yield 5 UUIDs.

list(...): Converts the generator into a list, forcing it to actually generate all 5 UUIDs.

len(...): Calculates the length of the list, which will be 5.

print(...): Outputs the result to the console.

Output:

5

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