如何使用SMTP使用gmail id发送邮件？

import smtplib
from email.mime.text import MIMEText

def send_email():
    # 配置 SMTP 服务器
    smtp_host = 'smtp.gmail.com'
    smtp_port = 587

    # 配置 Gmail 帐户信息
    gmail_username = 'your_email@gmail.com'
    gmail_password = 'your_password'

    # 创建邮件消息对象
    message = MIMEText('这是一封测试邮件。')
    message['From'] = gmail_username
    message['To'] = 'recipient@example.com'
    message['Subject'] = '测试邮件'

    try:
        # 登录 SMTP 服务器并发送邮件
        smtp_obj = smtplib.SMTP(smtp_host, smtp_port)
        smtp_obj.starttls()
        smtp_obj.login(gmail_username, gmail_password)
        smtp_obj.sendmail(gmail_username, 'recipient@example.com', message.as_string())
        smtp_obj.quit()
        print('邮件发送成功！')
    except smtplib.SMTPException as e:
        print('邮件发送失败:', str(e))

send_email()