python to be Windows Daemon

pywin32-219.win32-py2.7.exe         #32bit
pywin32-219.win-amd64-py2.7.exe     #64bit

import win32serviceutil
import win32service
import win32event

class PythonService(win32serviceutil.ServiceFramework):
"""
Usage: 'PythonService.py [options] install|update|remove|start [...]|stop|restart [...]|debug [...]'
Options for 'install' and 'update' commands only:
--username domain\username : The Username the service is to run under
--password password : The password for the username
--startup [manual|auto|disabled|delayed] : How the service starts, default = manual
--interactive : Allow the service to interact with the desktop.
--perfmonini file: .ini file to use for registering performance monitor data
--perfmondll file: .dll file to use when querying the service for
performance data, default = perfmondata.dll
Options for 'start' and 'stop' commands only:
--wait seconds: Wait for the service to actually start or stop.
If you specify --wait with the 'stop' option, the service
and all dependent services will be stopped, each waiting
the specified period.
"""
#服务名
_svc_name_ = "PythonService"
#服务显示名称
_svc_display_name_ = "Python Service Demo"
#服务描述
_svc_description_ = "Python service demo."

def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(self, args)
self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
self.logger = self._getLogger()
self.isAlive = True

def _getLogger(self):
import logging
import os
import inspect

logger = logging.getLogger('[PythonService]')

this_file = inspect.getfile(inspect.currentframe())
dirpath = os.path.abspath(os.path.dirname(this_file))
handler = logging.FileHandler(os.path.join(dirpath, "service.log"))

formatter = logging.Formatter('%(asctime)s %(name)-12s %(levelname)-8s %(message)s')
handler.setFormatter(formatter)

logger.addHandler(handler)
logger.setLevel(logging.INFO)

return logger

def SvcDoRun(self):
import time
self.logger.error("svc do run....")
while self.isAlive:
self.logger.error("I am alive.")
time.sleep(1)
# 等待服务被停止
win32event.WaitForSingleObject(self.hWaitStop, win32event.INFINITE)

def SvcStop(self):
# 先告诉SCM停止这个过程
self.logger.error("svc do stop....")
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
# 设置事件
win32event.SetEvent(self.hWaitStop)
self.isAlive = False

if __name__=='__main__':
win32serviceutil.HandleCommandLine(PythonService)