Python tutorial for sending emails attached to the contents of the entire folder

Since I often need to back up the contents of the folder into the email. Every time I open the email, upload the file, and send it, it is too troublesome. In fact, the files sent are placed in a fixed position, but the email title is different. So I wrote a widget for myself to send files to the email address in Python, execute the script in any directory, and specify the email tag, and send the files under the specified folder to the email address to back up.

#!/usr/bin/env python
# coding: utf-8

from smtplib import SMTP, quotedata, CRLF, SMTPDataError
from  import MIMEMultipart
from  import MIMEBase
from  import MIMEText
from email import Encoders
from sys import stderr, stdout
import os
import sys

class ExtendedSMTP(SMTP):
  def data(self, msg):
    ("data")
    (code,repl)=()
    if  > 0 : print >> stderr, "data:", (code, repl)
    if code != 354:
      raise SMTPDataError(code,repl)
    else:
      q = quotedata(msg)
      if q[-2:] != CRLF:
        q = q + CRLF
      q = q + "." + CRLF

      # begin modified send code
      chunk_size = 2048
      bytes_sent = 0

      while bytes_sent != len(q):
        chunk = q[bytes_sent:bytes_sent+chunk_size]
        (chunk)
        bytes_sent += len(chunk)
        if hasattr(self, "callback"):
          (bytes_sent, len(q))
      # end modified send code

      (code,msg)=()
      if  >0 : print>>stderr, "data:", (code,msg)
      return (code,msg)

def callback(progress, total):
  percent = 100. * progress / total
  ('\r')
  ("%s bytes sent of %s [%2.0f%%]" % (progress, total, percent))
  ()
  if percent >= 100: ('\n')

def sendmail(subject):
  MAIL_FROM = 'mymail@'
  MAIL_TO = ['mymail@']
  BAK_DIR = '/path/to/bak/folder'

  msg = MIMEMultipart()
  msg['From'] = MAIL_FROM
  msg['Subject'] = subject

  ( MIMEText('test send attachment') )
  for filename in (BAK_DIR):
    part = MIMEBase('application', "octet-stream")
    part.set_payload(open((BAK_DIR, filename),"rb").read() )
    Encoders.encode_base64(part)
    part.add_header('Content-Disposition', 'attachment; filename="%s"' % (filename))
    (part)

  try:
    smtp = ExtendedSMTP()
     = callback
    ('', 25)
    ('mymail', 'mypwd')
    (MAIL_FROM, MAIL_TO, msg.as_string())
    ()
    ('rm -f %s/*' % BAK_DIR)
  except Exception, e:
    print e

if __name__ == '__main__':
  if len() == 1:
    print 'Please specific a subject'
    print 'Usage: send_files <MAIL_SUBJECT>'
  else:
    sendmail([1])

Install:

Configure the recipient, sender, smtp address, username, password and the path where the file to be sent.

Save the file as send_files and save it under /usr/bin.

Then set the file permissions to be executable:

$ chmod +x send_files

usage:

$ send_files 'Email Title'

There is also a progress bar~~