在 python 中发送电子邮件时出错：'bytes' 对象没有属性 'encode'

Question

我需要在 python3 中发送一封电子邮件，下面是脚本，它失败了，错误为：

'bytes' object has no attribute 'encode'

import smtplib
from email.mime.text import MIMEText
from email.message import EmailMessage

att1 = [u'201902260920AM.log']
msg = MIMEText("EmailOperator testing email.")
msg['Subject'] = "EmailOperator testing email."
msg['From'] = "Airflow_Notification_No_Reply@company.Com"
msg['To'] = "pasle@company.com"

msg['files'] = str(att1).encode("UTF-8")

s = smtplib.SMTP('localhost')
s.send_message(msg)
s.quit()

发送带附件的电子邮件的正确方法是什么？

不胜感激，如果有人能在这里开导我，先谢谢了。

UPDATE1：您可以运行 python3 中的上述代码，您将收到错误

UPDATE2：事实上，我想附加的实际日志文件应该是这样的： '/home/pasle/airflow/logs/pipeline_client1/send_email/2019-02-27T01:40:38.451894+00:00/1.log'

而且我需要发送带有多个附件的邮件，谢谢你的帮助。

Answer 1

att1 = [u'201902260920AM.log']
msg = MIMEText("EmailOperator testing email.")
msg['Subject'] = "EmailOperator testing email."
msg['From'] = "Airflow_Notification_No_Reply@novantas.Com"
msg['To'] = "rxie@novantas.com"

msg['files'] = att1[0].encode("utf-8")

s = smtplib.SMTP('localhost')
s.send_message(msg)
s.quit()

它应该可以工作。

您使用的事实 [u'ABC'] 将是 Unicode 字符串的单元素列表。

因此您需要将列表转换为单个 Unicode 字符串，然后将其转换为 utf-8。

更新：

import smtplib
from os.path import basename
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

files = ['/home/pasle/airflow/logs/pipeline_client1/send_email/2019-02-27T01:40:38.451894+00:00/1.log',
        '/home/pasle/airflow/logs/pipeline_client1/send_email/2019-02-27T01:40:38.451894+00:00/2.log']

msg = MIMEMultipart()
msg['From'] = 'Airflow_Notification_No_Reply@novantas.com'
msg['To'] = 'rxie@novantas.com'
msg['Subject'] = 'Email operator testing email.'
message = MIMEText('Email operator testing email body text.')
msg.attach(message)

for f in files:
    with open(f, "rb") as file:
        part = MIMEApplication(
            file.read(),
            Name=basename(f)
        )
    # After the file is closed
    part['Content-Disposition'] = 'attachment; filename="%s"' % basename(f)
    msg.attach(part)

gmail_sender = 'sender@gmail.com'
gmail_passwd = 'password'

server = smtplib.SMTP_SSL('smtp.gmail.com', 465)
server.login(gmail_sender, gmail_passwd)

server.send_message(msg)
server.quit()

在我调查您的问题时，Attribute Error 的发生是由于未将 msg 声明为 MIMEMultipart() 方法。

在 python 中发送电子邮件时出错：'bytes' 对象没有属性 'encode'

error when sending email in python: 'bytes' object has no attribute 'encode'

sendmail

python-3.x