线程如何在python中相互通信？

Question

I am writing two Python programs: one that runs an algorithm on a graph, and one that draws the graph using matplotlib. How do I send a point to be graphed from the algorithm to the graphing program using Python?

Answer 1

Use the Queue module:

The Queue module implements multi-producer, multi-consumer queues. It is especially useful in threaded programming when information must be exchanged safely between multiple threads. The Queue class in this module implements all the required locking semantics.

I see that your question is tagged multithreading , but your question seems to be defining it as multiple processes. If you have multiple processes, use Queue from the multiprocessing which "is a near clone of Queue.Queue ".

If you need two way communication, use muliprocessing.Pipe .

Answer 2

I've done something very similar when I had matplotlib in a wxPython window. I used pubsub and wx.CallAfter for this purpose. See this link for an example.