我正在研究将在excel文件中添加一个字符串并将该文件附加到电子邮件的python代码。我正在使用AWS SES发送此电子邮件。

当我尝试运行我的代码时，它给我以下错误-

TypeError: expected bytes-like object,not Workbook

下面是我的代码-

import boto3
import xlsxwriter
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart


def lambda_handler(event,context):
    client = boto3.client('ses',region_name=AWS_REGION)
    sender = "xxx@gmail.com"
    to = "aaa@gmail.com"
    workbook = xlsxwriter.Workbook('abc.xlsx') 
    worksheet = workbook.add_worksheet() 
    worksheet.write('A1','Hello..')
    #send email with attachment
    msg = MIMEMultipart()
    msg['Subject'] = 'Test Email'
    msg['From'] = sender
    msg['To'] = to
    body_text = MIMEText(BODY_TEXT,"html")
    attachment = MIMEApplication(workbook)
    attachment.add_header('Content-Disposition','attachment',filename='Expenses01.xlsx')
    msg.attach(attachment)
    msg.attach(body_text)
    response = client.send_raw_email(
        Source=sender,Destinations=[to],RawMessage={"Data": msg.as_string()}

    )

我知道工作簿对象有问题。但是我不知道如何解决这个问题。有人可以帮我吗？