gistfile1.py

import clr
clr.AddReference("System.Management")
import System
from System.Management import *

logicalDrives = None

def getLogicalDrives():
  global logicalDrives
  if None == logicalDrives:
    DiskSearch = ManagementObjectSearcher(SelectQuery("Select * from Win32_LogicalDisk"))
    try:
      moDiskCollection = DiskSearch.Get()
      logicalDrives = []
      try:
        for mo in moDiskCollection:
          logicalDrives.append(mo["Name"])
          mo.Dispose()
      finally:
        moDiskCollection.Dispose()
    finally:
      DiskSearch.Dispose()
  return logicalDrives

    
if __name__ == "__main__":
  print getLogicalDrives()