我们平时需要使用 Python 发送各类邮件，这个需求怎么来实现？答案其实很简单，[smtplib](https://docs.python.org/2/library/smtplib.html) 和 [email](https://docs.python.org/2/library/email.html)库可以帮忙实现这个需求。[smtplib](https://docs.python.org/2/library/smtplib.html) 和 [email](https://docs.python.org/2/library/email.html) 的组合可以用来发送各类邮件：普通文本，HTML 形式，带附件，群发邮件，带图片的邮件等等。我们这里将会分几节把发送邮件功能解释完成。 [smtplib](https://docs.python.org/2/library/smtplib.html) 是 Python 用来发送邮件的模块，[email](https://docs.python.org/2/library/email.html) 是用来处理邮件消息。 发送邮件系列最后一篇将会介绍发送混合邮件：里面包含附件，HTML 形式，不同文本: ~~~ import smtplib from email.mime.multipart import MIMEMultipart from email.mime.text import MIMEText sender = '***' receiver = '***' subject = 'python email test' smtpserver = 'smtp.163.com' username = '***' password = '***' # Create message container - the correct MIME type is multipart/alternative. msg = MIMEMultipart('mixed') msg['Subject'] = "Link" # Create the body of the message (a plain-text and an HTML version). text = "Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.python.org" html = """\ Hi! How are you? Here is the link you wanted. """ # Record the MIME types of both parts - text/plain and text/html. part1 = MIMEText(text, 'plain') part2 = MIMEText(html, 'html') # Attach parts into message container. # According to RFC 2046, the last part of a multipart message, in this case # the HTML message, is best and preferred. msg.attach(part1) msg.attach(part2) # 构造附件 att = MIMEText(open('/Users/1.jpg', 'rb').read(), 'base64', 'utf-8') att["Content-Type"] = 'application/octet-stream' att["Content-Disposition"] = 'attachment; filename="1.jpg"' msg.attach(att) smtp = smtplib.SMTP() smtp.connect(smtpserver) smtp.login(username, password) smtp.sendmail(sender, receiver, msg.as_string()) smtp.quit() ~~~ 注意：这里的代码并没有把异常处理加入，需要读者自己处理异常。