Python multiprocessing: object passed by value?

Question

I have been trying the following:

from multiprocessing import Pool

def f(some_list):
    some_list.append(4)
    print \'Child process: new list = \' + str(         


        

Answer 1

The multiprocessing library serializes objects using pickle to pass them between processes.

This ensures safe inter-process communication, and two processes can use the "same" objects without using shared memory.