Python Coding challenge - Day 628| What is the output of the following Python Code?

Code Explanation:

1. import uuid

Explanation:

This imports Python's built-in uuid module.

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

uuid.uuid4() generates a random UUID based on random numbers.

2. def uuid_generator(n):

Explanation:

This defines a generator function named uuid_generator.

It takes a single argument n, which indicates how many UUIDs to generate.

3. for _ in range(n):

Explanation:

This loop runs n times.

The underscore _ is used here as a throwaway variable, since we don’t need the loop index.

4. yield uuid.uuid4()

Explanation:

In each loop iteration, the generator yields a new randomly-generated UUID using uuid.uuid4().

This makes uuid_generator(n) a generator that yields n UUIDs.

5. print(len(list(uuid_generator(3))))

Explanation:

uuid_generator(3) returns a generator that will yield 3 UUIDs.

list(...) consumes the generator, creating a list of 3 UUIDs.

len(...) calculates the length of that list — which is 3.

print(...) prints that number (3) to the console.

Output:

3

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