Explain the concept of a process in the Python programming language.

In Python, a process is an instance of a program running in the operating system with its own address space, resources, and state.

When you run a Python script, the OS creates a new process that contains:

• Memory for code and data
• Call stack
• System descriptors (files, sockets, etc.)

Processes are isolated from each other, ensuring security and stability.

To create new processes in Python, the multiprocessing module is used, which allows running parallel tasks in separate processes, bypassing the GIL (Global Interpreter Lock) limitations.

Example of creating a process:

from multiprocessing import Process

def worker():
    print('Process is running')

if __name__ == '__main__':
    p = Process(target=worker)
    p.start()
    p.join()

Thus, a process is the basic unit of program execution in the OS, and in Python, modules can be used to manage process creation and interaction.