Make running python script more responsive to ctrl c?

Question

We are running a very large framework of python scripts for test automation and I do really miss the opportunity to kill a running python script with ctrl + c in some situations on Windows.

When the script might be doing some socket communications with long time-outs the only options sometimes is to kill the DOS window.. Is there any options I have missed?

Mike Graham · Accepted Answer · 2011-09-02 16:55:51Z

2

Rather than using blocking calls with long timeouts, use event-driven networking. This will allow you never to have long periods of time doing uninterruptable operations.

edited Sep 2, 2011 at 16:55

answered Sep 2, 2011 at 15:45

Mike Graham

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5 Comments

PaulMcG Over a year ago

Did you mean "uninterruptable"? Don't want to put words in your mouth. :)

StefanE Over a year ago

I have inherited the framework (15-20k lines of code) so in time I might solve the issues with time outs.. were more looking for some magic key combination :)

StefanE Over a year ago

And we are using the Pyro libs and I don't want to mess to much with that.

Mike Graham Over a year ago

@Paul, Yet again, I am caught by mindless spellcheck accepting. :)

Mike Graham Over a year ago

@StefanE, I know of no magic for this, and I'm certain if there is any it's not portable.

PaulMcG · Accepted Answer · 2011-09-02 15:42:07Z

0

Look for instances of:

try:
    some code
except:
    # catches all exceptions, including ^C

Change to:

try:
    some code
except Exception:
    # catches most exceptions, but not KeyboardInterrupt or SystemExit

answered Sep 2, 2011 at 15:42

PaulMcG

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2 Comments

Wooble Over a year ago

It's fairly certain that the issue is blocking calls not allowing the interpreter to raise KeyboardInterrupt, rather than catching and ignoring it.

Mike Graham Over a year ago

Note that both of these instances should be used absurdly sparingly, at least if they don't come with a bare raise.

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