On 12/6/19 12:58 PM, Israel Brewster wrote:
I was running some code and I saw this pop up in the console:

2019-12-06 11:53:54.087 Python[85524:39651849] WARNING: nextEventMatchingMask 
should only be called from the Main Thread! This will throw an exception in the 
future.

The only problem is, I have no idea what is generating that warning - I never 
call nextEventMatchingMask directly, so it must be getting called from one of 
the libraries I’m calling. Is there some way I can force python to throw an 
exception now, so my debugger can catch it and let me know where in my code the 
originating call is? I’ve tried stepping through the obvious options, with no 
luck so far.

---
Israel Brewster
Software Engineer
Alaska Volcano Observatory
Geophysical Institute - UAF
2156 Koyukuk Drive
Fairbanks AK 99775-7320
Work: 907-474-5172
cell:  907-328-9145


You need to set the warning filter to "error", which you can do either with warnings.simplefilter at the start of your program or by setting the PYTHONWARNINGS environment variable.

https://docs.python.org/3/library/warnings.html#the-warnings-filter

This the same project you're having PySide/threading problems on?
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