检查 Windows 服务是否存在 Python

Question

我在 python 中编写了一个与 Windows 服务交互的程序。但是，在这样做之前，我需要检查是否安装了该服务。

我正在使用以下代码获取服务。但如果它不存在，我会收到错误消息。

win32serviceutil.QueryServiceStatus('myservice')

这是错误：

Traceback (most recent call last):
  File "win32serviceutil.pyc", line 835, in SvcRun
  File "main.py", line 54, in SvcDoRun
  File "main.py", line 103, in main
  File "main.py", line 57, in start_service
  File "main.pyc", line 495, in QueryServiceStatus
  File "main.pyc", line 80, in SmartOpenService
error: (1060, 'GetServiceKeyName', 'The specified service does not exist as an installed service')

有什么方法可以查看吗？

Answer 1

似乎 Try-Except 块是最简单的解决方案：

try: 
    win32serviceutil.QueryServiceStatus('myservice')
except:
    print "Windows service NOT installed"
else:
    print "Windows service installed"

Answer 2

可以使用 psutil 4.2.0 or newer 来完成：

代码如下：

from __future__ import print_function
import psutil

def get_service(name):
    service = None
    try:
        service = psutil.win_service_get(name)
        service = service.as_dict()
    except Exception as ex:
        # raise psutil.NoSuchProcess if no service with such name exists
        print(str(ex))

    return service

service = get_service('LanmanServer')

if service:
    print("Service found: ", service)
else:
    print("Service not found")

if service and service['status'] == 'running':
    print("Service is running")
else: 
    print("Service is not running")

检查 Windows 服务是否存在 Python

Check if a Windows Service exists with Python

python

windows-services