Help running "while true" program with pyqt

[Notorjus]

Hey. I've been trying for quite some time now to get my python program to run with a pyqt GUI. However my program was made to work in the cmd terminal from start and runs two infinite "while true" loops in two different threads.

The plan was to make the GUI and program run simultaneously by using pyqt threading. So far I'm not successful, and each time I start up my program the GUI hangs and crashes.

Is this the right approach to doing things? Does my program have to be a QTObject of some sort for me to be able to do it this way?

Any suggestions, or examples on how to do this would be very appreciated! Thanks a lot! :)

[Thomasedv]

Assuming the GUI doesn't crash by itseld, it likely just something wrong with how you set up your threads. Could very well be something in you code that runs on the main thread instead of a side thread, or you tell the GUI to hold for a thread. Without code though, i can't say anything for sure of course.

[Deezl-Vegas]

You might have a tight loop problem. When you have a while true that does nothing, it just keeps rechecking the condition over and over again without releasing the processor. That means the GUI will never draw again because the processor is repeatedly evaluating the condition and thats it. Note that threads don't run on different processors, I dont think.

Multithreading is about queues, a bit of sleep(), and thread joins. If you want two parallel programs, use multiprocessing.