Python execute threads by order

Question

I have the following code:

import threading

def send_to_server(lst):
    #Some logic to send the list to the server.


while 1:
    lst = []
    for i in         


        

Answer 1

You want to use Queue, the threadsafe queue class in python. I imagine you want a thread to put things in the queue, and a thread to act on them serially like so:

q = Queue.Queue()
t1 = threading.Thread(target=fill_q,args(q, lst))
t2 = threading.Thread(target=consume_q,args(q, lst))
t1.start()
t2.start()

def fill_q(q, lst):
    for elem in lst:
        q.put(elem)

def consume_q(q, lst):
    for i in range(len(lst)):
        send_to_server(q.get())

If you are interested in performance, you may want to read up on the GIL in python, here https://wiki.python.org/moin/GlobalInterpreterLock