python监控windows下文件夹的变化

import os
import sys

import win32file
import win32con

ACTIONS = {
  1: "Created",
  2: "Deleted",
  3: "Updated",
  4: "Renamed from something",
  5: "Renamed to something"
}

FILE_LIST_DIRECTORY = 0x0001

path_to_watch = 'E:/test'
print 'Watching changes in', path_to_watch
hDir = win32file.CreateFile(
  path_to_watch,
  FILE_LIST_DIRECTORY,
  win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE,
  None,
  win32con.OPEN_EXISTING,
  win32con.FILE_FLAG_BACKUP_SEMANTICS,
  None
)
while 1:

    results = win32file.ReadDirectoryChangesW(
        hDir,
        1024,
        True,
        win32con.FILE_NOTIFY_CHANGE_FILE_NAME |
        win32con.FILE_NOTIFY_CHANGE_DIR_NAME |
        win32con.FILE_NOTIFY_CHANGE_ATTRIBUTES |
        win32con.FILE_NOTIFY_CHANGE_SIZE |
        win32con.FILE_NOTIFY_CHANGE_LAST_WRITE |
        win32con.FILE_NOTIFY_CHANGE_SECURITY,
        None,
        None)
    for action, filename in results:
        full_filename = os.path.join(path_to_watch, filename)
        print (full_filename, ACTIONS.get(action, "Unknown"))