`Except KeyboardInterrupt` ignored when running user code on Windows

[eugene-bce]

try:
    # Drone code

except KeyboardInterrupt:
    # Safe land code

The KeyboardInterrupt exception does not run as ctrl+c kills the program regardless. My students are using Mu to program parrot mambos and I need an emergency stop for them. With Idle we'd use ctrl+c and handle the KeyboardInterrupt to land the drone safely. Unfortunatley in Mu it immediately exits the program instead, leaving the drone floating in mid-air.

[carlosperate]

HI @r3dh0t,

Thanks for the report! Could you provide steps to replicate? I had a quick test and the KeyboardInterrupt is properly captured in Python mode:

Kapture.2021-08-10.at.09.27.13.mp4

[eugene-bce]

Hi @carlosperate
I hope this helps :)

interrupt.mp4

[carlosperate]

Hi @r3dh0t

I see you are running alpha2, could you update to the latest beta and try again?
https://github.com/mu-editor/mu/releases/

[eugene-bce]

Same behaviour unfortunately @carlosperate .

Perhaps it just occurs on Windows?

[carlosperate]

You are right, I'm able to replicate this on Windows:

And it does work on Ubuntu:

So this is a Windows specific issue.

The other thing to notice is that in macOS and Ubuntu Ctrl + C drops the user into the REPL, but in windows it doesn't.