python3的第三方模块-watchdog文件系统监控的使用（python3经典编程案例）

Posted 2022-01-19 cui_yonghua

原理是通过操作系统的时间触发的，不需要循环，也不需要等待。

如监控test文件夹下的动态：

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


class FileEventHandler(FileSystemEventHandler):

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

    def on_moved(self, event):
        super(FileEventHandler, self).on_moved(event)
        now = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
        if event.is_directory:
            print(f" now  文件夹由  event.src_path  移动至  event.dest_path ")
        else:
            print(f" now  文件由  event.src_path  移动至  event.dest_path ")

    def on_created(self, event):
        super(FileEventHandler, self).on_created(event)
        now = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
        if event.is_directory:
            print(f" now  文件夹  event.src_path  创建")
        else:
            print(f" now  文件  event.src_path  创建")

    def on_deleted(self, event):
        super(FileEventHandler, self).on_deleted(event)
        now = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
        if event.is_directory:
            print(f" now  文件夹  event.src_path  删除")
        else:
            print(f" now  文件  event.src_path  删除")

    def on_modified(self, event):
        super(FileEventHandler, self).on_modified(event)
        now = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
        if event.is_directory:
            print(f" now  文件夹  event.src_path  修改")
        else:
            print(f" now  文件  event.src_path  修改")


if __name__ == "__main__":
    observer = Observer()
    path = r"test/"
    event_handler = FileEventHandler()
    observer.schedule(event_handler, path, True)
    print(f"监控目录 path")
    observer.start()
    observer.join()