Python使用watchdog实时监测文件或文件夹的更改

pip install watchdog

import time
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

class MyHandler(FileSystemEventHandler):
    def on_modified(self, event):
        print(f"文件被修改: {event.src_path}")
    def on_created(self, event):
        print(f"文件被创建: {event.src_path}")
    def on_deleted(self, event):
        print(f"文件被删除: {event.src_path}")

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

import time
import os
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

class MyHandler(FileSystemEventHandler):
    def __init__(self, target_file):
        self.target_file = os.path.abspath(target_file)
        self.last_modified = 0

    def dispatch(self, event):
        if os.path.abspath(event.src_path) == self.target_file:
            super().dispatch(event)

    def on_modified(self, event):
        now = time.time()
        # 1秒内只响应一次
        if now - self.last_modified > 1:
            print(f"文件被修改: {event.src_path}")
            self.last_modified = now

    def on_created(self, event):
        print(f"文件被创建: {event.src_path}")

    def on_deleted(self, event):
        print(f"文件被删除: {event.src_path}")

if __name__ == "__main__":
    target_file = "test.txt"
    path = os.path.dirname(os.path.abspath(target_file)) or "."
    event_handler = MyHandler(target_file)
    observer = Observer()
    observer.schedule(event_handler, path, recursive=False)
    observer.start()
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()