Can you describe the features and the working mechanism of processes in Python?

In Python, processes are created using the multiprocessing module, which allows running multiple processes in parallel, bypassing the GIL (Global Interpreter Lock) limitation.

Features of processes in Python:

• Each process has its own memory and address space, unlike threads.
• Processes do not share global variables, so special mechanisms (queues, pipes, shared memory) are used for data exchange.
• Creating a process is heavier than a thread, but it allows efficient utilization of multiple CPU cores.

Working mechanism:

When a process is created, a new Python interpreter is launched, which executes the specified function or code. The main process and child processes work independently.

Example of creating a process:

from multiprocessing import Process

def worker(name):
    print(f"Process {name} started")

if __name__ == '__main__':
    p = Process(target=worker, args=('A',))
    p.start()
    p.join()  # Wait for the process to finish

Thus, processes in Python allow tasks to be performed in parallel, efficiently utilizing system resources, but require a special approach to data exchange and synchronization.