import multiprocessing
from PIL import Image

name = input("Enter the file name: ")

def decode_file(filename):
    with open(filename, mode='rb') as file:
        binary_data = file.read()

    binary_list = []
    for byte in binary_data:
        binary_list.append(format(byte, '08b'))
    return binary_list

binary_list = decode_file(name)

l = len(binary_list)
no_of_bytes = l // 8

def make_row_list():
    row_list = []
    for i in range(0, l, 135):
        row_list.append(binary_list[i:i + 135])
    return row_list

row_list = make_row_list()

def fill_row(shared_pixels, width, row_data, count):
    x_coordinate = 0
    for byte in row_data:
        for bit in byte:
            index = x_coordinate + count * width
            shared_pixels[index] = int(bit)
            x_coordinate += 1

def fill_img(width, height):
    shared_pixels = multiprocessing.Array('i', width * height)
    processes = []
    count = 0
    for row_data in row_list:
        p = multiprocessing.Process(target=fill_row, args=(shared_pixels, width, row_data, count))
        p.start()
        processes.append(p)
        count += 1
    for process in processes:
        process.join()
    return shared_pixels

def create_img():
    width, height = 1080, 1920
    image = Image.new('1', (width, height))

    if no_of_bytes <= 135:
        x_coordinate = 0
        for byte in binary_list:
            for bit in byte:
                image.putpixel((x_coordinate, 0), int(bit))
                x_coordinate += 1
    elif no_of_bytes <= 259200:
        shared_pixels = fill_img(width, height)
        for y in range(height):
            for x in range(width):
                image.putpixel((x, y), shared_pixels[x + y * width])

    image.save('hi.png')
    image.show()

create_img()

When i run this program it asks for file name then keeps asking for file name indefinitely. The program was running fine before i added multiprocessing. So i think multiprocessing is to be blamed for this. I am new with multiprocessing so any help will be much appreciated 😀