Python 2.7 实现带附件及图片的邮件发送功能

from email.header import Header
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
import mimetypes

from email.mime.multipart import MIMEMultipart
import os
import smtplib

from email import Encoders as email_encoders


class Message(object):
 def __init__(self, from_addr, to_addr, subject="", html="", text=None, cc_addr=[], attachment=[]):

  self.from_addr = from_addr
  self.subject = subject

  if to_addr:
   if isinstance(to_addr, list):
    self.to_addr = to_addr
   else:
    self.to_addr = [d for d in to_addr.split(',')]
  else:
   self.to_addr = []

  if cc_addr:
   if isinstance(cc_addr, list):
    self.cc_addr = cc_addr
   else:
    self.cc_addr = [d for d in cc_addr.split(',')]
  else:
   self.cc_addr = []

  if html is not None:
   self.body = html
   self.body_type = "html"
  else:
   self.body = text
   self.body_type = "plain"

  self.parts = []
  if isinstance(attachment, list):
   for file in attachment:
    self.add_attachment(file)

 def add_attachment(self, file_path, mimetype=None):
  """
   If *mimetype* is not specified an attempt to guess it is made. If nothing
   is guessed then `application/octet-stream` is used.
  """
  if not mimetype:
   mimetype, _ = mimetypes.guess_type(file_path)

  if mimetype is None:
   mimetype = 'application/octet-stream'

  type_maj, type_min = mimetype.split('/')
  with open(file_path, 'rb') as fh:
   part_data = fh.read()

   part = MIMEBase(type_maj, type_min)
   part.set_payload(part_data)
   email_encoders.encode_base64(part)

   part_filename = os.path.basename(file_path)
   part.add_header('Content-Disposition', 'attachment; filename="%s"'
       % part_filename)
   part.add_header('Content-ID', part_filename)

   self.parts.append(part)

 def __to_mime_message(self):
  """Returns the message as
  :py:class:`email.mime.multipart.MIMEMultipart`."""

  ## To get the message work in iOS, you need use multipart/related, not the multipart/alternative
  msg = MIMEMultipart('related')
  msg['Subject'] = self.subject
  msg['From'] = self.from_addr
  msg['To'] = ','.join(self.to_addr)

  if len(self.cc_addr) > 0:
   msg['CC'] = ','.join(self.cc_addr)

  body = MIMEText(self.body, self.body_type)
  msg.attach(body)

  # Add Attachment
  for part in self.parts:
   msg.attach(part)

  return msg

 def send(self, smtp_server='localhost'):

  smtp = smtplib.SMTP()
  smtp.connect(smtp_server)
  smtp.sendmail(from_addr=self.from_addr, to_addrs=self.to_addr + self.cc_addr, msg=self.__to_mime_message().as_string())
  smtp.close()

from mail_base import Message
import datetime
from_addr = 'xxx'
mail_to = 'xxx'


def send_go():
 time_now = datetime.datetime.now().strftime('%Y-%m-%d %H:%M')
 attach_files = ['testcsv.xlsm','test1.jpg','test2.jpg','test3.jpg']
 mail_msg = """
  <p>Hi Lockey:</p>
  <p><img src="cid:test1.jpg"></p>####要特别注意这里，正文插入图片的特殊格式！！！
  <hr/>
  <p style="text-indent:16px">Here is the latest paper link from The Economist, you can click <a href="https://lockeycheng.github.io/iooi/index.html" rel="external nofollow" >Go</a> for a full view!</p>
  <hr/>
  <p>Best Regards</p>
  <p>
   Any question please mail to <a href='mailto:iooiooi23@163.com'>Lockey23</a>.
  </p>
  <p>Sent at {} PST</p>
  """.format(time_now)
 subject = '[Halo] - ' + 'A new paper published!'
 msg = Message(from_addr=from_addr,
     to_addr=[mail_to],
     cc_addr=[mail_to],
     subject=subject,
     attachment=attach_files,
     html=mail_msg
     )
 msg.send()

if __name__ == '__main__':
 send_go()

~$ python sendGo.py