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Simple but powerful signal handling to process OS signals in python

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Simple but powerful signal handling to process OS signals in python

##Example Usage:

import listen import subprocess
### Instanciate SignalHandler
sig_hand = listen.SignalHandler()
### Start external process
external_process = subprocess.Popen([‘sh’, ‘-c’, ‘sleep 30’])
### Register some signal handlers to kill external process on SIGINT (ctrl-c)
kill_event = sig_hand.reg_on_status(external_process.kill)
### Wait for external process
external_process.wait()
### Press ctrl-c to send SIGINT or alternatively use the following to unregister the event
sig_hand.del_status_event(kill_event)

For a more detailed example including interaction with bash please see the tests/example.py and tests/external_process.bash

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