如何从Win32_PnPEntity实例中提取特定属性? [英] How to extract a particular attribute from instance of Win32_PnPEntity?

问题描述

def getPnpDeviceInfo():
    c = wmi.WMI()
    wql = "SELECT * FROM Win32_PnPEntity WHERE Manufacturer != 'Microsoft' AND NOT PNPDeviceID LIKE 'ROOT\\%'"
    print ("All physical PNP devices")
    for J in c.query(wql):
    print(J)

此函数(查询)通常返回所有物理PNP设备，这是一个输出示例:

This function (the query) typically returns all physical PNP devices, here is an output sample :

instance of Win32_PnPEntity
{
Caption = "ACPI Lid";
ClassGuid = "{4d36e97d-e325-11ce-bfc1-08002be10318}";
ConfigManagerErrorCode = 0;
ConfigManagerUserConfig = FALSE;
CreationClassName = "Win32_PnPEntity";
Description = "ACPI Lid";
DeviceID = "ACPI\\PNP0C0D\\2&DABA3FF&3";
HardwareID = {"ACPI\\PNP0C0D", "*PNP0C0D"};
Manufacturer = "(Standard system devices)";
Name = "ACPI Lid";
PNPDeviceID = "ACPI\\PNP0C0D\\2&DABA3FF&3";
Status = "OK";
SystemCreationClassName = "Win32_ComputerSystem";
SystemName = "SUSDUTTA-LAP";
};

问题是，如果我只想提取实例的"PNPDeviceID"，如何在python中执行此操作而不更改WQL?

Question is, if I want to extract just the "PNPDeviceID" of the instance, how to do so in python, without changing the WQL?

推荐答案

没关系，请参见__getattr__(self,'attribute_name'_)"，该方法使用特定的属性名称返回了数据.

Never mind, figured in the WMI python doc. The WQL returns the answer as a list, and there is a factory method "__getattr__(self,'attribute_name'_)" which returned the data using specific attribute name.

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