Python uses Queue to exchange data among multiple sub-processes

This article mainly introduces how to exchange data between multiple sub-processes using Queue in python. The example shows how to use Queue to implement data interaction between processes, for more information about how to exchange data between multiple sub-processes, see the example in this article. Share it with you for your reference. The details are as follows:

The Queue is used as an intermediate channel for data transmission. the Queue is thread-and process-safe.

From multiprocessing import Process, Queuedef f (q): q. put ([42, None, 'Hello']) if _ name _ = '_ main _': q = Queue () p = Process (target = f, args = (q,) p. start () print q. get () # prints "[42, None, 'Hello']" p. join ()

I hope this article will help you with Python programming.