Python: 获取U盘设备名称[windows]

Question

我正在尝试编写能够读取有关 REMOVEABLE_DEVICE (USB) 的一些信息的小程序。我试过 pyusb 但我无法提取我需要的数据。

我想从系统中读取USB设备的名称。

采用这种格式：

USB Flash Memory - this is the model information
Removable Disk (H:) - this is the name of device

Generic Flash Disk
USB DISK (F:)

Lexar USB Flash Drive
Lexar (I:)

我可以使用 win32com.client 库获取型号信息，灵感来自 here，但我无法获取设备名称在 Windows 资源管理器中显示。

也许我使用了错误的库？

这是我的代码：

import win32com.client
strComputer = "."
objWMIService = win32com.client.Dispatch("WbemScripting.SWbemLocator")
objSWbemServices = objWMIService.ConnectServer(strComputer,"root\cimv2")
colItems = objSWbemServices.ExecQuery("SELECT * FROM Win32_DiskDrive WHERE InterfaceType = \"USB\"")
for objItem in colItems:
    if objItem.Caption != None:
        print "Caption:" + ` objItem.Caption[:-11]`

这里是 link Windows Win32_DiskDrive Class: link

预先感谢您的帮助。

Answer 1

我会看起来很奇怪，但它会起作用（获取所有可移动卷的列表 Label's）

import os
os.system('echo list volume > Ravi.txt')
path1 = os.path.join(os.getcwd(),"Ravi.txt")
os.system('diskpart /s '+path1+' > logfile.txt')
path2 = os.path.join(os.getcwd(),"logfile.txt")

Str = open(path2).read()
Str = Str.split('\n')
matching = [s for s in Str if "Removable" in s]

for i in matching:
    i = ' '.join(i.split())
    i = i.split(" ")
    print i[3]+"("+i[2]+":)"

输出

MYPENDRIVE(D:)

Answer 2

免责声明：我对win32com.client库没有任何经验。

像您一样从 Win32_DiskDrive 开始，我检查了 Win32_DiskDriveToDiskPartition and Win32_LogicalDiskToPartition, and then to Win32_LogicalDisk 得到了您想要的 VolumeName。

import win32com.client
strComputer = "."
objWMIService = win32com.client.Dispatch("WbemScripting.SWbemLocator")
objSWbemServices = objWMIService.ConnectServer(strComputer,"root\cimv2")

# 1. Win32_DiskDrive
colItems = objSWbemServices.ExecQuery("SELECT * FROM Win32_DiskDrive WHERE InterfaceType = \"USB\"")
DiskDrive_DeviceID = colItems[0].DeviceID.replace('\', '').replace('.', '')
DiskDrive_Caption = colItems[0].Caption

print 'DiskDrive DeviceID:', DiskDrive_DeviceID

# 2. Win32_DiskDriveToDiskPartition
colItems = objSWbemServices.ExecQuery("SELECT * from Win32_DiskDriveToDiskPartition")
for objItem in colItems:
    if DiskDrive_DeviceID in str(objItem.Antecedent):
        DiskPartition_DeviceID = objItem.Dependent.split('=')[1].replace('"', '')

print 'DiskPartition DeviceID:', DiskPartition_DeviceID

# 3. Win32_LogicalDiskToPartition
colItems = objSWbemServices.ExecQuery("SELECT * from Win32_LogicalDiskToPartition")
for objItem in colItems:
    if DiskPartition_DeviceID in str(objItem.Antecedent):
        LogicalDisk_DeviceID = objItem.Dependent.split('=')[1].replace('"', '')

print 'LogicalDisk DeviceID:', LogicalDisk_DeviceID

# 4. Win32_LogicalDisk
colItems = objSWbemServices.ExecQuery("SELECT * from Win32_LogicalDisk WHERE DeviceID=\"" + LogicalDisk_DeviceID + "\"")
print 'LogicalDisk VolumeName:', colItems[0].VolumeName
print

# putting it together
print DiskDrive_Caption
print colItems[0].VolumeName, '(' + LogicalDisk_DeviceID + ')'

适合我：

DiskDrive DeviceID: PHYSICALDRIVE1
DiskPartition DeviceID: Disk #1, Partition #0
LogicalDisk DeviceID: D:
LogicalDisk VolumeName: PENDRIVE

Sony Storage Media USB Device
PENDRIVE (D:)

这似乎提供了一种复杂但可行的方法，也许您可以进一步简化它。我唯一的简化是已经省略了 Win32_DiskPartition，因为我们只需要连接。

请注意：

我不确定解压 \.\PHYSICALDRIVE1 之类的东西的 "clean" 方法是什么，但应该可以摆脱 .replace() 方法。
我不确定是否可以将步骤 2 和 3 中的循环集成到查询中？这也会大大简化它（也许可以 JOIN 他们 SQL-like？）。
（以上代码仅适用于单个 USB 驱动器。）

Answer 3

我使用了@adrianus 的方法并将其改进为 return 多个 USB 驱动器。对于它是如何工作的，请检查他的答案。对于希望对您有用的快速而肮脏的代码，请查看下面:)

def get_usb_volume_name():  # pragma: no cover
    str_computer = "."
    logical_disk_device_ids = []
    volumes = []
    try:
        obj_wmi_service = win32com.client.Dispatch("WbemScripting.SWbemLocator")
        obj_swbem_services = obj_wmi_service.ConnectServer(str_computer, "root\cimv2")

    # 1. Win32_DiskDrive
    col_items = obj_swbem_services.ExecQuery("SELECT * FROM Win32_DiskDrive WHERE InterfaceType = \"USB\"")
    for item in col_items:
        disk_drive_device_ids = item.DeviceID.replace('\', '').replace('.', '')

    # 2. Win32_DiskDriveToDiskPartition
    col_items = obj_swbem_services.ExecQuery("SELECT * from Win32_DiskDriveToDiskPartition")
    disk_partition_device_ids = []
    for obj_item in col_items:
        for disk_drive_device_id in disk_drive_device_ids:
            if disk_drive_device_id in str(obj_item.Antecedent):
                disk_partition_device_ids.append(obj_item.Dependent.split('=')[1].replace('"', ''))
                break

    # 3. Win32_LogicalDiskToPartition
    col_items = obj_swbem_services.ExecQuery("SELECT * from Win32_LogicalDiskToPartition")
    for objItem in col_items:
        for disk_partition_device_id in disk_partition_device_ids:

            if disk_partition_device_id in str(objItem.Antecedent):
                logical_disk_device_ids.append(objItem.Dependent.split('=')[1].replace('"', ''))
                break

    # 4. Win32_LogicalDisk
    col_items = []
    for logical_disk_device_id in logical_disk_device_ids:
        col_items.append(obj_swbem_services.ExecQuery("SELECT * from Win32_LogicalDisk WHERE DeviceID=\"" +
                                                      logical_disk_device_id + "\""))

    for col_item in col_items:
        volumes.append(col_item[0].VolumeName)
except IndexError:
    pass
volumes_result = []
logical_disk_device_ids_result = []
for i in range(len(volumes)):
    if volumes[i] != "":
        volumes_result.append(volumes[i])
        logical_disk_device_ids_result.append(logical_disk_device_ids[i])

return logical_disk_device_ids_result, volumes_result

Python: 获取U盘设备名称[windows]

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