I’m having some trouble debugging an issue, I have an asyncio project and I would like it to shutdown gracefully. When I run my code and send a KeyboardInterrupt or TERM signal from a different screen, nothing seems to happen and it doesn’t look like clean_loop is being called. EDIT: I think I was…
Tag: signals
Update model field ( SearchVector ) using signals.py
I am trying to update search vector field using post_save signal. Through “Admin.py”, It is working perfectly, but through “Form page” , the searchVector field or any other field is not getting updated. In form page, I have many to many field – “Tag” that I save throu…
Signal handler is not able to change variable
I’m trying to create a simple signal handler for my Python application but the value of exiting does not change even when I use Ctrl-C. If I put exiting, out of the main function the value changes. How can I change the value of exiting when it is inside main()? Currently, the program always prints False…
How to gracefully terminate an asyncio script with Ctrl-C?
I’ve read every post I could find about how to gracefully handle a script with an asyncio event loop getting terminated with Ctrl-C, and I haven’t been able to get any of them to work without printing one or more tracebacks as I do so. The answers are pretty much all over the place, and I haven…
Understanding scipy deconvolve
I’m trying to understand scipy.signal.deconvolve. From the mathematical point of view a convolution is just the multiplication in fourier space so I would expect that for two functions f and g: Deconvolve(Convolve(f,g) , g) == f In numpy/scipy this is either not the case or I’m missing an importan…
What is the correct way to make my PyQt application quit when killed from the console (Ctrl-C)?
What is the correct way to make my PyQt application quit when killed from the console (Ctrl-C)? Currently (I have done nothing special to handle unix signals), my PyQt application ignores SIGINT (Ctrl+C). I want it to behave nicely and quit when it is killed. How should I do that? Answer 17.4. signal — Set ha…
How do I capture SIGINT in Python?
I’m working on a python script that starts several processes and database connections. Every now and then I want to kill the script with a Ctrl+C signal, and I’d like to do some cleanup. In Perl I’d do this: How do I do the analogue of this in Python? Answer Register your handler with signal…