Question

所以我一直试图找到一种方法来访问任务管理器。我尝试了一些方法，包括wmi模块和windows任务列表，但都不适合我的需要。 wmi太慢了，当我在使用多处理的东西中多次同时访问它时，任务列表变得太慢了。所以我发现这个脚本运行得很好，但是我不能让它与线程一起工作。

import win32com.client
strComputer = "."
objWMIService = win32com.client.Dispatch("WbemScripting.SWbemLocator")
objSWbemServices = objWMIService.ConnectServer(strComputer,"root\cimv2")
colItems = objSWbemServices.ExecQuery("Select * from Win32_Process")
for objItem in colItems:
   print "Name: ", objItem.Name
   print "File location: ", objItem.ExecutablePath

这是错误：

Exception in thread Thread-1:
Traceback (most recent call last):
  File "C:\Python27\lib\threading.py", line 810, in __bootstrap_inner
    self.run()
  File "C:\Python27\lib\threading.py", line 763, in run
    self.__target(*self.__args, **self.__kwargs)
  File "C:\python practice\stuff.py", line 5, in idk
    objWMIService = win32com.client.Dispatch("WbemScripting.SWbemLocator")
  File "C:\Python27\lib\site-packages\pypiwin32-219-py2.7-win32.egg\win32com\cli
ent\__init__.py", line 95, in Dispatch
    dispatch, userName = dynamic._GetGoodDispatchAndUserName(dispatch,userName,c
lsctx)
  File "C:\Python27\lib\site-packages\pypiwin32-219-py2.7-win32.egg\win32com\cli
ent\dynamic.py", line 114, in _GetGoodDispatchAndUserName
    return (_GetGoodDispatch(IDispatch, clsctx), userName)
  File "C:\Python27\lib\site-packages\pypiwin32-219-py2.7-win32.egg\win32com\cli
ent\dynamic.py", line 91, in _GetGoodDispatch
    IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx, pythoncom.II
D_IDispatch)
com_error: (-2147221008, 'CoInitialize has not been called.', None, None)

Answer 1

您需要致电CoInitialize()才能使用win32com.client：

import pythoncom
import win32com.client as client

pythoncom.CoInitialize()

strComputer = "."
objWMIService = client.Dispatch("WbemScripting.SWbemLocator")
objSWbemServices = objWMIService.ConnectServer(strComputer,"root\cimv2")
colItems = objSWbemServices.ExecQuery("Select * from Win32_Process")

for objItem in colItems:
    print "Name: ", objItem.Name
    print "File location: ", objItem.ExecutablePath

有关更多背景信息，请参阅using win32com with multithreading

为什么这个脚本不适用于线程化python

1 个答案: