进程之间进行通信：Python多处理

Question

I am using PyQt to create the gui for my application and ran into some trouble using threads for seperate processes, so started to use the multiprocessing.Process class. I was, before, using Signals and slots to communicate between the worker process and the gui, but the SignalInstance class can not be pickled and as far as I know cant be used with Process so I am having to find another way to send a progress report (percent done etc) from the worker process to update a progress bar in the gui. what is the best way of doing this?

Answer 1

Please see this answer, you can share memory between processes using the multiprocessing library. Documentation here (see 16.6.1.4. Sharing state between processes).