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interruptingcow /

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interruptingcow
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Interrupting Cow

MOOOOO!

Overview

Interruptingcow is a generic utility can relatively gracefully interrupt your Python code when it doesn't execute within a specific number of seconds:

from interruptingcow import timeout

try:
    with timeout(5):
        # perform a potentially very slow operation
        pass
except RuntimeError:
    print "didn't finish within 5 seconds"

Installation

$ pip install interruptingcow

Caveats

Interruptingcow uses signal(SIGALRM) to let the operating system interrupt program execution. This has the following limitations:

  1. Python signal handlers only apply to the main thread, so you cannot use this from other threads
  2. You must not use this in a program that uses SIGALRM itself