使用Python在MacOS上实现对文件夹的监控

本示例演示如何使用Python在MacOS上实现对文件夹的监控，当文件夹中出现新文件时发送邮件通知。实现方式使用Python库watchdog和SMTP协议。

import os
import sys
import time
import logging
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

class Handler(FileSystemEventHandler):
    def on_created(self, event):
        if event.is_directory:
            return None
        else:
            self.send_email(event.src_path)

    def send_email(self, source_path):
        to_email = 'your_email@example.com'
        from_email = 'your_email@example.com'
        password = 'your_password'
        smtp_server = 'smtp.example.com'

        subject = 'New File Created'
        message = 'A new file has been created: ' + source_path

        msg = MIMEMultipart()
        msg['From'] = from_email
        msg['To'] = to_email
        msg['Subject'] = subject

        part = MIMEText(message)
        msg.attach(part)

        part = MIMEApplication(open(source_path, 'rb').read(), Name=os.path.basename(source_path))
        part['Content-Disposition'] = 'attachment; filename="%s"' % os.path.basename(source_path)
        msg.attach(part)

        try:
            server = smtplib.SMTP(smtp_server, 587)
            server.starttls()
            server.login(from_email, password)
            server.sendmail(from_email, to_email, msg.as_string())
            server.quit()
            logging.info("Email sent!")
        except Exception as e:
            logging.error("Error sending email: " + str(e))

if __name__ == "__main__":
    path = sys.argv[1] if len(sys.argv) > 1 else '.'
    event_handler = Handler()
    observer = Observer()
    observer.schedule(event_handler, path, recursive=True)
    observer.start()
    logging.info("Monitoring folder: " + os.path.abspath(path))
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()

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