python監控文件/目錄變化

python監控文件/目錄變化的庫有許多，試了一些，個人感覺watchdog挺好用，對文件的創建/修改/刪除等都可以監控到，而且跨平臺，用法也比較簡單。

代碼示例

import time

from watchdog.events import *
from watchdog.observers import Observer


class FileEventHandler(FileSystemEventHandler):
    def __init__(self):
        FileSystemEventHandler.__init__(self)

    def on_moved(self, event):
        if event.is_directory:
            print("directory moved from {0} to {1}".format(event.src_path, event.dest_path))
        else:
            print("file moved from {0} to {1}".format(event.src_path, event.dest_path))

    def on_created(self, event):
        if event.is_directory:
            print("directory created:{0}".format(event.src_path))
        else:
            print("file created:{0}".format(event.src_path))

    def on_deleted(self, event):
        if event.is_directory:
            print("directory deleted:{0}".format(event.src_path))
        else:
            print("file deleted:{0}".format(event.src_path))

    def on_modified(self, event):
        if event.is_directory:
            print("directory modified:{0}".format(event.src_path))
        else:
            print("file modified:{0}".format(event.src_path))


if __name__ == "__main__":
    observer = Observer()
    event_handler = FileEventHandler()
    observer.schedule(event_handler, "C:/test", True)
    observer.start()
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()

腳本啓動之後，C:/test 目錄下的變化都會被實時監控到並打印出來。