from ctypes import *
from ctypes.wintypes import *

GetVolumeInformation = windll.kernel32.GetVolumeInformationW
LPDWORD = POINTER(DWORD)
GetVolumeInformation.restype = BOOL
GetVolumeInformation.argtypes = LPWSTR, LPWSTR, DWORD, LPDWORD, LPDWORD, LPDWORD, LPWSTR, DWORD
volumeNameBuffer = create_unicode_buffer(1024)
volumeSerialNumber = DWORD()
maximumComponentLenght = DWORD()
fileSystemFlags = DWORD()
fileSystemNameBuffer = create_unicode_buffer(1024)
ret = GetVolumeInformation(u'c:\\', volumeNameBuffer, 1024, byref(volumeSerialNumber), byref(maximumComponentLenght), byref(fileSystemFlags), fileSystemNameBuffer, 1024)
if ret:
    print volumeSerialNumber.value
    print volumeNameBuffer.value
    print maximumComponentLenght.value
    print fileSystemNameBuffer.value