Easily send an email attachment from the command line

sendit.py

import os, sys
import smtplib

from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.MIMEText import MIMEText
from email.Utils import formatdate
from email import Encoders

SMTP_SERVER='localhost'

import mimetypes
mimetypes.init()

def send_mail(send_from, send_to, subject, text, files=[], server=SMTP_SERVER):
  assert type(files)==list

  msg = MIMEMultipart()
  msg['From'] = send_from
  msg['To'] = send_to # if multiple join with ', '
  msg['Date'] = formatdate(localtime=True)
  msg['Subject'] = subject

  msg.attach( MIMEText(text) )

  for f in files:
    mtype = mimetypes.guess_type(f)[0]
    if mtype:
      part = MIMEBase(*mtype.split('/'))
    else:
      part = MIMEBase('application', "octet-stream")
    part.set_payload( open(f,"rb").read() )
    Encoders.encode_base64(part)
    part.add_header('Content-Disposition', 'attachment; filename="%s"' % os.path.basename(f))
    msg.attach(part)

  smtp = smtplib.SMTP(server)
  smtp.sendmail(send_from, send_to, msg.as_string())
  smtp.close()
  print 'Sent email to %s with attachments %s' % (send_to, files)


if __name__ == "__main__":
  _ ,send_from, send_to, subject, f = sys.argv
  send_mail(send_from, send_to, subject, "", [f])