How can I use multiprocessing in Python?

How can I use multiprocessing in Python?

You can use the multiprocessing module in Python to create multiple processes. This allows you to run tasks in parallel.

Can you show me a simple example?

Sure! Here's a basic example:

import multiprocessing

def square(n):
    return n * n

if __name__ == '__main__':
    with multiprocessing.Pool() as pool:
        results = pool.map(square, [1, 2, 3, 4, 5])
    print(results)

What does this code do?

This code creates a pool of processes and maps the square function to a list of numbers, returning their squares.

Are there any limitations I should be aware of?

Yes, multiprocessing can have overhead due to process creation and inter-process communication. It's best for CPU-bound tasks.