尝试使用wmi对象时出错(python)

Question

我正在尝试编写一个脚本来检测运行脚本的机器是虚拟机还是物理机,我不明白错误以及如何解决它.

import wmi

def sys_info():

    objWMIService = wmi.GetObject("winmgmts:\root\cimv2")
    colItems = objWMIService.ExecQuery("Select * from Win32_BaseBoard")

    for objItem in colItems:
        print "inside"
        Manufacturer = objItem.Manufacturer
        if Manufacturer == "Microsoft Corporation":
            print "Virtual Machine"
        else:
            print "Not in one"

错误:

    Traceback (most recent call last):
  File "C:\Documents and Settings\xxx\Desktop\Python\Practice Code\System information\trial.py", line 16, in <module>
    sys_info()
  File "C:\Documents and Settings\xxx\Desktop\Python\Practice Code\System information\trial.py", line 5, in sys_info
    objWMIService = wmi.GetObject("winmgmts:""\root\cimv2")
  File "C:\Python26\lib\site-packages\win32com\client\__init__.py", line 72, in GetObject
    return Moniker(Pathname, clsctx)
  File "C:\Python26\lib\site-packages\win32com\client\__init__.py", line 87, in Moniker
    moniker, i, bindCtx = pythoncom.MkParseDisplayName(Pathname)
com_error: (-2147217375, 'OLE error 0x80041021', None, None)

我希望有人可以提供帮助,我对python很新.谢谢.

Answer 1

如果你改变,事情会有所改善:

objWMIService = wmi.GetObject("winmgmts:\root\cimv2") 

至

objWMIService = wmi.GetObject(r"winmgmts:\root\cimv2") 

'\ root'中的'\ r'序列将被解释为<CR>代码中的字符.你要么必须加倍'\'来逃避它们,所以它们将被视为反斜杠,或者在第一个双引号之前加上'r'(正如我所做的那样),以向Python表明这应该是"原始的"字符串字面量.原始字符串与常规字符串没有区别,但原始字符串语法告诉Python编译器不解释反斜杠.