问题背景

在开发私人公众号，根据开发公众号的初衷需求，需要实现python脚本下发送带有附件的163邮件，实现Kindle电子书的自动化推送。 详细源码

问题解决

第一次尝试

最初的代码，使用web.py框架提供的发送邮件的代码，

web.config.smtp_server = 'smtp.gmail.com'
web.config.smtp_port = 587
web.config.smtp_username = 'cookbook@gmail.com'
web.config.smtp_password = 'secret'
web.config.smtp_starttls = True
# Once this configuration is set, web.sendmail can be used to send mail using the gmail account. Gmail signs all these mails.web.sendmail('cookbook@gmail.com', 'user@example.com', 'subject', 'message')

但是具体试验不成功，代码路径为：http://webpy.org/cookbook/sendmail_using_gmail
后边发现原因可能在于最终调用到

smtplib.SMTP_SSL(mail_host, port=port)

的差异上，web.py调用的不是上边对应的接口，而是下述代码片段

第二次尝试

既然方案不生效，那么只能找其他方法，开始在网络上一边寻找，一边试验代码是不是生效。哈哈哈，功夫不负有心人，终于还是找到可用的代码，也是通过下边的这段代码确定是接口调用的问题。参考的代码在https://blog.csdn.net/gpf951101/article/details/78909233这篇博客，
完整的代码如下：

import smtplib
from email.mime.text import MIMETextdef send_mail(username, passwd, recv, title, content, mail_host='smtp.163.com', port=465):msg = MIMEText(content)    msg['Subject'] = title    msg['From'] = usernamemsg['To'] = recv            print 'Begin Connect...'smtp = smtplib.SMTP_SSL(mail_host, port=port)print 'Begin Login...'  smtp.login(username, passwd)print 'Begin Send...'smtp.sendmail(username, recv, msg.as_string()) smtp.quit()  print('email send success.')if __name__ == '__main__':email_user = 'xxxx@163.com' email_pwd = 'xxxxx'  maillist = 'xxxxx@qq.com'title = 'mytitle'content = 'content, I comes from China!'send_mail(email_user, email_pwd, maillist, title, content)

@gpf951101特别感谢这位作者。上边的代码不是鄙人写的，来自上述链接。

到现在为止实现了python发送163的普通邮件，还差发送附件的功能。

第三次尝试

还是在网络上寻找，最终找到https://github.com/rootzhongfengshan/python_practical/blob/master/SentMail/SentMailWithAttachment.py
于是，最终的代码成型。来之不易，还望对诸君有所帮助。

上代码

#!/usr/bin/python
# -*- coding: UTF-8 -*-
'''
Created on 2018年12月4日@author: chuanqin
'''#===============================================================================
# below original code comes from the link:https://blog.csdn.net/gpf951101/article/details/78909233
# great thanks to this great man. I modify the code to suit my own project.
# also reference for attachment of email https://github.com/rootzhongfengshan/python_practical/blob/master/SentMail/SentMailWithAttachment.py
#===============================================================================import smtplib
import traceback
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from config import settingsdef send_mail(recv, title, content, attachments, mail_host='smtp.163.com', port=465):username = settings.get(u'email section', u'email user')passwd = settings.get(u'email section', u'email password')content = '
'+content+'
WeChat Official account QCQ.
' msg = MIMEText(content, 'html')message = MIMEMultipart()message['Subject'] = titlemessage['From'] = usernamemessage['To'] = recvmessage.attach(msg)for fileName in attachments:attachment = MIMEText(open(fileName, 'rb').read(), 'base64', 'utf-8')attachment["Content-Type"] = 'application/octet-stream'attachment["Content-Disposition"] = 'attachment; filename="' + fileName + '"'message.attach(attachment)try:print 'Begin Connect...'smtp = smtplib.SMTP_SSL(mail_host, port=port)print 'Begin Login...'smtp.login(username, passwd)print 'Begin Send...'smtp.sendmail(username, recv, message.as_string())smtp.quit()print('email send success.')except Exception, exc:print exc, traceback.print_exc()

解释代码

1. from config import settings
   这个文件中用于载入设置文件，因为，邮件的账户和密码是敏感信息，不方便直接放出来，尤其是把自己的代码用GitHub作为Host，这样上传代码的时候可以不用上传配置文件。下边是config.py代码片

import configparser
settings = configparser.ConfigParser()
settings._interpolation = configparser.ExtendedInterpolation()
settings.read('./config.ini')
print settings.sections()
print settings.get(u'email section', 'email user')

对应的config.ini文件如下，删除了敏感信息：

[email section]
email user: ********@163.com
email password: ****

2. 突然发现其他的没什么好说的了。

尾声

祝福大家都能写出好代码。

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