如何在 Python 中不使用 WMI 获取 PhysicalDisk？

Question

我想获得物理磁盘。我需要的信息之一是 BusType。我想在不使用 WMI 的情况下找到它。有什么办法吗？

感谢您的建议和信息。

Answer 1

你可以通过powershell获取总线类型的物理磁盘：

参考：https://www.action1.com/kb/getting-PC-hard-drive-information-using-Powershell.html

Get-PhysicalDisk

输出：

Number FriendlyName        SerialNumber                             MediaType CanPool OperationalStatus HealthStatus Usage            Size
------ ------------        ------------                             --------- ------- ----------------- ------------ -----            ----
0      INTEL SSDPEKNW512G8 0000_0000_0100_0000_E4D2_XXXX_XXXX_XXXX. SSD       False   OK                Healthy      Auto-Select 476.94 GB

---

获取总线类型：

Get-PhysicalDisk | ft -AutoSize DeviceId,Model,MediaType,BusType,Size

输出：

DeviceId Model               MediaType BusType         Size
-------- -----               --------- -------         ----
0        INTEL SSDPEKNW512G8 SSD       NVMe    512110190592

---

从python调用powershell：

参考：https://www.phillipsj.net/posts/executing-powershell-from-python/

completed = subprocess.run(["powershell", "-Command", "Get-PhysicalDisk | ft -AutoSize DeviceId,Model,MediaType,BusType,Size"], capture_output=True)

示例：

C:\Users\XXXXXX>python3
Python 3.8.3 (tags/v3.8.3:6f8c832, May 13 2020, 22:20:19) [MSC v.1925 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import subprocess
>>> ps_command = "Get-PhysicalDisk | ft -AutoSize DeviceId,Model,MediaType,BusType,Size"
>>> completed = subprocess.run(["powershell", "-Command", ps_command], capture_output=True)
>>> print(completed)
CompletedProcess(args=['powershell', '-Command', 'Get-PhysicalDisk | ft -AutoSize DeviceId,Model,MediaType,BusType,Size'], returncode=0, stdout=b'\r\nDeviceId Model               MediaType BusType         Size\r\n-------- -----               --------- -------         ----\r\n0        INTEL SSDPEKNW512G8 SSD       NVMe    512110190592\r\n\r\n\r\n', stderr=b'')
>>>

---

因此你可以制作这样的脚本：

# get_disk_bustype.py
import subprocess
ps_command = "Get-PhysicalDisk | ft -AutoSize BusType"

run_result = subprocess.run(["powershell", "-Command", ps_command], capture_output=True)
print(run_result)
# CompletedProcess(args=['powershell', '-Command', 'Get-PhysicalDisk | ft -AutoSize BusType'], returncode=0, stdout=b'\r\nBusType\r\n-------\r\nNVMe   \r\n\r\n\r\n', stderr=b'')

run_result_stdout = str(run_result.stdout)
print(run_result_stdout)
# '\r\nBusType\r\n-------\r\nNVMe   \r\n\r\n\r\n'

run_result_stdout_bustype = run_result_stdout.split("\\r\\n")[3]
print(run_result_stdout_bustype)
# '0        NVMe   '

run_result_stdout_bustype_clean = run_result_stdout_bustype.strip(" ")
print(run_result_stdout_bustype_clean)
# 'NVMe'

输出：

C:\Users\XXXXX>python3 get_disk_bustype.py
CompletedProcess(args=['powershell', '-Command', 'Get-PhysicalDisk | ft -AutoSize BusType'], returncode=0, stdout=b'\r\nBusType\r\n-------\r\nNVMe   \r\n\r\n\r\n', stderr=b'')
b'\r\nBusType\r\n-------\r\nNVMe   \r\n\r\n\r\n'
NVMe
NVMe