How Can I Use Fork() In Python3.3

how can i use fork() in Python3.3 **This is My code : Input: #!/usr/bin/env python import os def Child_process(): print('We are in Child_Process') print('My PID: %d'%os.ge

Solution 1:

os.fork is only available in Unix-like system. You cannot use that in Windows.

os.fork()

Fork a child process. Return 0 in the child and the child’s process id in the parent. If an error occurs OSError is raised.

Note that some platforms including FreeBSD <= 6.3, Cygwin and OS/2 EMX have known issues when using fork() from a thread.

Availability: Unix.

Solution 2:

Since os.fork isn't available on your target, consider instead using the subprocess module or even (batteries-not-included) envoy.

These create a convenient abstraction around launching children.

Solution 3:

You should use the python's default multiprocessing package. It works with both Linux and Windows.

from multiprocessing import Process, Array

defsplit_work_receiver(import_type, process_no, i, shared_arr):
   creds= login()

    if creds isnotNone:
        process_submissions(browser, i, import_type, process_no, shared_arr)
    else:
        print("Failed login.")
    returndefsplit_work(base_path, i, connection_url, database_name):
    shared_arr = Array('i', range(0)) # Used to send data across processeses
    processes = [
        Process(target=split_work_receiver, args=("arg1", base_path, i, shared_arr)),
        Process(target=split_work_receiver, args=("arg1", base_path, i, shared_arr)),
        Process(target=split_work_receiver, args=("arg1", base_path, i, shared_arr))]

    #Run processesfor p in processes:
        p.start()

    whileTrue:
        sleep(600)

    #Exit the completed processesfor p in processes:
        print('Closed process: '+ str(p))
        p.join()