#!/usr/bin/env python # -*- coding: UTF-8 -*-  from email.mime.multipart import MIMEMultipart from email.mime.base import MIMEBase from email.mime.text import MIMEText   from email.utils import COMMASPACE,formatdate from email import encoders   import os   def send_mail(server, fro, to, subject, text, files=[]):    assert type(server) == dict    assert type(to) == list    assert type(files) == list      msg = MIMEMultipart()    msg['From'] = fro    msg['Subject'] = subject    msg['To'] = COMMASPACE.join(to) #COMMASPACE==', '    msg['Date'] = formatdate(localtime=True)    msg.attach(MIMEText(text))      for f in files:      part = MIMEBase('application', 'octet-stream') #'octet-stream': binary data      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)      import smtplib    smtp = smtplib.SMTP(server['name'], server['port'])    smtp.ehlo()   smtp.starttls()   smtp.ehlo()    smtp.login(server['user'], server['passwd'])    smtp.sendmail(fro, to, msg.as_string())    smtp.close()    if __name__=='__main__':   server = {'name':'mail.server.com', 'user':'chenxiaowu', 'passwd':'xxxx', 'port':25}   fro = 'chenxiaowu@163.com'   to = ['xxxx@163.com']   subject = '腳本運行提醒'   text = 'mail content'   files = ['top_category.txt']   send_mail(server, fro, to, subject, text, files=files)