如何使用python制作windows系统服务？

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import time

import win32api
import win32event
import win32service
import win32serviceutil
import servicemanager


class MyService(win32serviceutil.ServiceFramework):

 _svc_name_ = "MyService"
 _svc_display_name_ = "My Service"
 _svc_description_ = "My Service"

 def __init__(self, args):
  self.log('init')
  win32serviceutil.ServiceFramework.__init__(self, args)
  self.stop_event = win32event.CreateEvent(None, 0, 0, None)

 def SvcDoRun(self):
  self.ReportServiceStatus(win32service.SERVICE_START_PENDING)
  try:
   self.ReportServiceStatus(win32service.SERVICE_RUNNING)
   self.log('start')
   self.start()
   self.log('wait')
   win32event.WaitForSingleObject(self.stop_event, win32event.INFINITE)
   self.log('done')
  except BaseException as e:
   self.log('Exception : %s' % e)
   self.SvcStop()

 def SvcStop(self):
  self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
  self.log('stopping')
  self.stop()
  self.log('stopped')
  win32event.SetEvent(self.stop_event)
  self.ReportServiceStatus(win32service.SERVICE_STOPPED)

 def start(self):
  time.sleep(10000)

 def stop(self):
  pass

 def log(self, msg):
  servicemanager.LogInfoMsg(str(msg))

 def sleep(self, minute):
  win32api.Sleep((minute*1000), True)

if __name__ == "__main__":
 if len(sys.argv) == 1:
  servicemanager.Initialize()
  servicemanager.PrepareToHostSingle(MyService)
  servicemanager.StartServiceCtrlDispatcher()
 else:
  win32serviceutil.HandleCommandLine(MyService)

pyinstaller -F MyService.py

# 安装服务
dist\MyService.exe install

# 启动服务
sc start MyService

# 停止服务
sc stop MyService

# 删除服务
sc delete MyService