Mutable Variable in Multiprocessing

Ok i try to modify value of an array by two different process. I have read the docs about using proxy list, i use it but i didnt know why it doesnt work.

So 1 array and two process modify it in the same time..

import multiprocessing as mp
from multiprocessing.sharedctypes import Value, Array
import time

def decrement(baris):
    for x in range(0,5):
        c = [x-1 for x in baris]
        baris = Array('i', c)
        print(baris[:])
        time.sleep(1)
    print(baris[:])

def assign(baris):
    for x in range(0,2):
        f = baris[:]
        f[1] = 5
        baris = Array('i',f)
        time.sleep(1)
    print(baris[:])


if __name__ == '__main__':
    baris = Array('i',[10,10,10], lock=mp.Lock())
    decrease = mp.Process(target = decrement, args=(baris,))
    decrease.daemon = True
    decrease.start()
    change = mp.Process(target = assign, args=(baris,))
    change.daemon = True
    change.start()

    decrease.join()
    change.join()

    dir(baris)
    print(baris[:])# + 'Final')

baris is the variable that i hope changed in the end. c and f are the proxy list. When the process run, process 'assign' change value of baris[1] to 5 but process 'decrement' didnt mention that change. And in the end, baris didnt change at all!!!! I stuck and didnt know what to do, is that any possible way to run what i desire? In the end i hope i get baris = [5,4,5].

Just correct if my grammar wrong etc.