Django 中如何发送带有附件的电子邮件

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.example.com'
EMAIL_PORT = 587
EMAIL_USE_TLS = True
EMAIL_HOST_USER = 'your_email@example.com'
EMAIL_HOST_PASSWORD = 'your_email_password'

from django.core.mail import EmailMessage
from django.conf import settings
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.image import MIMEImage
import os

def send_email_with_attachment(request):
    # 构造邮件体
    subject = '测试邮件-带附件'
    message = '这是一封带有附件的测试邮件'
    from_email = settings.EMAIL_HOST_USER
    to_email = ['receiver@example.com']

    # 构造邮件对象
    msg = MIMEMultipart()
    msg['Subject'] = subject
    msg['From'] = from_email
    msg['To'] = ','.join(to_email)

    # 添加文字内容
    text = MIMEText(message)
    msg.attach(text)

    # 添加附件
    image_path = os.path.join(settings.BASE_DIR, 'static', 'images', 'pidancode.png')
    image_file = open(image_path, 'rb').read()
    image_attach = MIMEImage(image_file)
    image_attach.add_header('Content-Disposition', 'attachment', filename='pidancode.png')
    msg.attach(image_attach)

    # 发送邮件
    try:
        mail = EmailMessage(subject, message, from_email, to_email)
        mail.attach_file(image_path)
        mail.send()
        message = '邮件发送成功'
    except Exception as e:
        message = '邮件发送失败：{}'.format(str(e))

    return HttpResponse(message)