如何在发送邮件时正确处理文件名中包含空格的附件

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
import os

def prepare_attachment(filepath):
    filename = os.path.basename(filepath)
    attachment = open(filepath, "rb")

    # instance of MIMEBase and named as p
    p = MIMEBase('application', 'octet-stream')

    # To change the payload into encoded form.
    p.set_payload((attachment).read())

    # encode into base64
    encoders.encode_base64(p)

    # 使用引号将文件名括起来
    p.add_header('Content-Disposition', 'attachment; filename="%s"' % filename)

    return p


class Sender(object):

    def __init__(self, sender_email, sender_password, recipient_email, attachments):
        self.sender_email = sender_email
        self.sender_password = sender_password
        self.recipient_email = recipient_email
        self.attachments = attachments

    def send(self):
        msg = MIMEMultipart()
        msg['From'] = self.sender_email
        msg['To'] = self.recipient_email
        msg['Subject'] = "Attachment Test"

        msg.attach(MIMEText("This is a test email with attachments.", 'plain'))

        for attachment in self.attachments:
            p = prepare_attachment(attachment)
            msg.attach(p)

        try:
            s = smtplib.SMTP('smtp.gmail.com', 587)
            s.starttls()
            s.login(self.sender_email, self.sender_password)
            text = msg.as_string()
            s.sendmail(self.sender_email, self.recipient_email, text)
            s.quit()
            print("Email sent successfully!")
        except Exception as e:
            print(f"Error sending email: {e}")


# Example usage
if __name__ == '__main__':
    sender_email = "your_email@gmail.com"  # Replace with your email address
    sender_password = "your_password"  # Replace with your email password
    recipient_email = "recipient_email@example.com"  # Replace with recipient's email address
    attachments = ["my attachment.pdf"] # Replace with the path to your attachment

    sender = Sender(sender_email, sender_password, recipient_email, attachments)
    sender.send()

p.add_header('Content-Disposition', 'attachment; filename="%s"' % filename)