as_string() 方法返回一个 AttributeError答案

【问题标题】：as_string() method return an AttributeErroras_string() 方法返回一个 AttributeError
【发布时间】：2019-12-03 23:36:11
【问题描述】：

我尝试通过这部分代码使用python 3.6从gmail发送消息：

import smtplib as smtp
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
import os

SUBJECT = *subject message*
SOURCE = *directory*
TEXT = *some text in message*

msg = MIMEMultipart()
msg['From'] = *send from email*
msg['To'] = *send to email*
msg['Subject'] = SOURCE

#################### part with attachment
msg.attach(MIMEText(TEXT, 'plain'))
filename = os.path.basename(SOURCE)
attachment = open(SOURCE, 'rb')
part = MIMEBase('application', 'octet-stream')
part.set_payload(attachment.read())
encoders.encode_base64(part)
part.add_header('Content-Disposition', 'attachment; filename = %s'%filename)
msg.attach(part)
#################### end of attachment part

#################### server part
server = smtp.SMTP(smtp.gmail.com', 587)
server.starttls()
server.login(*send from email*, *send from email password*)
server.sendmail(*send from email*, *send to email*, msg.as_string())
server.close()

但是得到一个属性错误：

AttributeError: 'list' 对象没有属性 'encode'

如果我删除代码的附件部分并在服务器部分之前添加msg = MIMEText(TEXT)，我会在我的电子邮件中收到一封信，但它不包含主题。所以我收到一封只有一些文字的信。

我做错了什么？有什么想法吗？

编辑：错误出现在msg.as_string() 行

【问题讨论】：

标签： python python-3.x email smtp

【解决方案1】：

这是我通过 python 发送电子邮件的方式

#this will allow us to send emails over our smtp server
import smtplib

#who the message will be from, doesn't really need to be set since the message variable will do this automatically
sender ='sender@email.com'
#who the message will be sent to (this one matters)
receiver = 'receiver@email.com'

#the actual email we'll be sending, note its contents- the To section is irrelevant but neccessary
message = """From: From Person <sender@email.com>
To: To Person <receiver@email.com>
Subject: SMTP Email Test

this is a test email
"""

try:
    #proc our server to send the mail by providing it's ip to the program
    smtpObj = smtplib.SMTP('<your smtp ip address goes here>')#this is the ip of the server I'm on
    #attempt to send the piece of  mail
    smtpObj.sendmail(sender, receiver, message)
    #if the above executes send a confirmation to the user
    print "Successfully sent mail!"
except:
    #if something goes wrong catch it ad send a message to the user
    print "Error: unable to send mail"

要添加附件，只需添加我从 here 检索到的以下内容

# open the file to be sent  
filename = "File_name_with_extension"
attachment = open("Path of the file", "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) 

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

# attach the instance 'p' to instance 'msg' 
smtpObj.attach(p)

【讨论】：

谢谢。但在这段代码中，没有任何方法可以发送附件。
我很抱歉刚刚意识到我发送了一个旧版本的脚本，我已经用我用来启用附件的资源更新了它。希望这会有所帮助:) 如果您有任何问题，请告诉我
感到很抱歉，但这并没有帮助。我有同样的AttributeError: 'list' object has no attribute 'encode
抱歉没能帮上忙；也许我会把这个资源传递给你，作为最后的努力来帮助你：stackoverflow.com/questions/44607943/…

【解决方案2】：

变化：

msg.attach(MIMEText(TEXT, 'plain'))
filename = os.path.basename(SOURCE)
attachment = open(SOURCE, 'rb')
part = MIMEBase('application', 'octet-stream')
part.set_payload(attachment.read())
encoders.encode_base64(part)
part.add_header('Content-Disposition', 'attachment; filename = %s'%filename)
msg.attach(part)

与：

msg.attach(MIMEText(text))

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

为我工作。感谢How to send email attachments?@Oli 的回答。

【讨论】：