[python-win32] Catching SIGBREAK with Python 3.3

[Tim Golden]

On 12/11/2012 13:12, Stefan Scherfke wrote:
> Hi all,
>
> recently I’ve been playing around with sending and catching signals on
> Windows. I finally found out how to send and catch a BREAK event.
>
> With Python 2.7(.2), I only need os.kill(pid, signal.CTRL_C_EVENT) and
> signal.signal(signal.SIGBREAK, handler). Alternatively, I can use
> GenerateConsoleCtrlEvent and SetConsoleCtrlHandler via ctypes.
>
> However, the former does not work with Python 3.3 (64bit) and the latter
> always raises a KeyError in Python’s threading module.
>
> My question is: Should signal.signal(signal.SIGBREAK, handler) work
> under Python 3.3? If so, what am I doing wrong? Why raises the
> ctypes-variant an error while the signal-variant doesn’t?

Possibly unhelpfully, I've just run your code on Python 2.7, 3.3 and 
3.4, all of which gave the same output:

parent waiting for child
child terminating
parent terminating

This is on WinXP SP3.

That said, there has been quite a bit of activity around the handling of 
Ctrl-C / Ctrl-Break and KeyboardInterrupt around 3.2 so it wouldn't 
surprise me if something has changed there.

TJG