Simple way to run multiple python threads

Question

I\'m importing multiple python threads from different directories and then want to run them simultaneously.

Here\'s my parent:

import sys
import thread
         


        

Answer 1

You also need to provide a tuple with the argument to run the function with. If you have none, pass an empty tuple.

thread.start_new_thread(test2.main, ())

From the docs of thread.start_new_thread(function, args[, kwargs]) (boldface mine):

Start a new thread and return its identifier. The thread executes the function function with the argument list args (which must be a tuple). The optional kwargs argument specifies a dictionary of keyword arguments. When the function returns, the thread silently exits. When the function terminates with an unhandled exception, a stack trace is printed and then the thread exits (but other threads continue to run).

You can also:

thread = Thread(target = test2.main, args, kwargs)

thread.start() // starts the thread

thread.join() // wait

Read more on this approach to creating and working with threads here.