# Python program to illustrate the concept
# of threading
import threading
import os
  
def task1():
    print("Task 1 assigned to thread: {}".format(threading.current_thread().name))
    print("ID of process running task 1: {}".format(os.getpid()))
  
def task2():
    print("Task 2 assigned to thread: {}".format(threading.current_thread().name))
    print("ID of process running task 2: {}".format(os.getpid()))
  
if __name__ == "__main__":
  
    # print ID of current process
    print("ID of process running main program: {}".format(os.getpid()))
  
    # print name of main thread
    print("Main thread name: {}".format(threading.current_thread().name))
  
    # creating threads
    t1 = threading.Thread(target=task1, name='t1')
    t2 = threading.Thread(target=task2, name='t2')  
  
    # starting threads
    t1.start()
    t2.start()
  
    # wait until all threads finish
    t1.join()
    t2.join()