The Watcher that will not die

gistfile1.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import print_function
import os
import threading
import sys
import time


class Watcher(object):
    def __init__(self):
        self.file = '/Users/brenthoover/Desktop/stub'
        self.mtime = os.stat(self.file).st_mtime
        self.monitor_count = 0

    def start(self):
        try:
            self._monitor_thread = threading.Thread(target=self.monitor_till_stopped)
            self._monitor_thread.start()
        except:
            print('keyboard interrupt')
            sys.exit()

    def execute(self):
        print('run the application')

    def monitor_file(self):
        print('monitor: %s' % self.monitor_count)
        mtime = os.stat(self.file).st_mtime
        if mtime > self.mtime:
            print('changed....')
            self.execute()
            self.mtime = mtime

    def monitor_till_stopped(self):
        while True:
            self.monitor_count += 1
            if self.monitor_count > 15:
                sys.exit()
            self.monitor_file()
            time.sleep(1)

if __name__ == '__main__':
    w = Watcher()
    w.start()