Python监控Windows下的文件变化

windows下监控文件系统的变化，用python很方便。实例代码如下，很简单，也不多说了。

import os
import win32file

import win32con

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

FILE_LIST_DIRECTORY = win32con.GENERIC_READ | win32con.GENERIC_WRITE
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
)

if __name__ == '__main__':
print("123")
while 1:
print("321")
results = win32file.ReadDirectoryChangesW (
hDir, #handle: Handle to the directory to be monitored. This directory must be opened with the FILE_LIST_DIRECTORY access right.
1024, #size: Size of the buffer to allocate for the results.
True, #bWatchSubtree: Specifies whether the ReadDirectoryChangesW function will monitor the directory or the directory tree.
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, file in results:
full_filename = os.path.join (path_to_watch, file)
print (full_filename, ACTIONS.get (action, "Unknown"))

相关参考链接：

http://docs.activestate.com/activepython/2.4/pywin32/win32file__ReadDirectoryChangesW_meth.html

http://docs.activestate.com/activepython/2.5/pywin32/win32file__CreateFile_meth.html