What methods can be used to perform background task processing without using Celery?

There are several approaches to background processing tasks without Celery in Python:

• threading module — for running tasks in separate threads.
• multiprocessing module — for running tasks in separate processes, useful for CPU-intensive tasks.
• Asyncio — for asynchronous task execution, especially if tasks involve input/output operations.
• RQ (Redis Queue) — a simple task queue based on Redis, an alternative to Celery.
• Using cron or system schedulers for periodic script execution.

Example with threading:

import threading

def background_task():
    print("Task is running in the background")

thread = threading.Thread(target=background_task)
thread.start()

This code runs the function in a separate thread without blocking the main execution thread.