import time

from threading import Event, Thread

class RepeatedTimer(object):

'''

Repeater class that call the function every interval seconds.

'''

def __init__(self, interval, function, *args, **kwargs):

self.interval = interval

self.function = function

self.args = args

self.kwargs = kwargs

self.started = time.time()

self.event = Event()

self.thread = Thread(target=self._target)

self._started = False

def _target(self):

while not self.event.wait(self._time):

self.function(*self.args, **self.kwargs)

@property

def _time(self):

return self.interval - ((time.time() - self.started) % self.interval)

def start(self):

if not self._started:

self._started = True

self.thread.setDaemon(True)

self.thread.start()

def stop(self):

if self._started:

self._started = False

self.event.set()

self.thread.join()