pyCountdownTimer

A count-down timer that periodically checks a flag (to terminate the timer) using a supplied callable.

There are some simple unit-tests that take 20 seconds to execute and leave no remaining threads or processes.

    from  pyCountdownTimer import Timer, InteruptedSleep
    
    #   Sleep/block for max: 'int_duration_seconds' checking boolean state of 'callable_func()' every 'resolution_seconds':
    try:
      boolean_slept = Timer(int_duration_seconds, callable_func, resolution_seconds)
    except ValueError:
      print "Error or inconsistant parameters passed to CountdownTimer"
    except InteruptedSleep, e:
      print "Sleep was interrupted prematurely by callable_func() at: %s"%e.when
      print "Remaining sleep time: %s"%e.remaining
      print "Slept for time: %s"%e.duration
      print "Expected to sleep for time: %s"%e.expected
    else:
      # FYI - timer may not sleep if 'int_duration_seconds'==0
      print "Did we sleep? "+boolean_slept

In case you're feeling generous: LTC: LT636SrauWAz9XDz2EKxAXQ5jKqehyhR69 BTC: 13vS6cvzZXf1Yxrar2SYSPQrFLSEwLePV4