在三引号内打印列表

Question

我想在电子邮件中打印列表的元素。

我在python脚本中定义了列表，如下所示：

exceptions = []

在脚本的最后，列表将包含以下元素：

This is a boy.
This is a girl.
This is a dog.

我想在python脚本设计的电子邮件中打印名为“ exceptions”的列表的元素。

fromaddr = 'xxx@xxx.com'
toaddrs  = 'xxx@xxx.com'

msg = """Subject:Big Bro FTP issue.
From: xxx@xxx.com
To:  xxx@xxx.com

!!!PRINT THE EXCEPTION LIST HERE!!!
"""
print "Message length is " + repr(len(msg))


smtp_server = 'xxxxx.com'
smtp_username = 'xxxxxx'
smtp_password = 'xxxxxx'
smtp_port = '587'
smtp_do_tls = True

server = smtplib.SMTP(
host = smtp_server,
port = smtp_port,
timeout = 10
)

server.starttls()
server.ehlo()
server.login(smtp_username, smtp_password)
server.sendmail(fromaddr, toaddrs, msg)
print server.quit()

任何帮助将不胜感激。

Answer 1

我更喜欢MIMEText

import smtplib
from email.mime.multipart import MIMEText
msg = MIMEText("your_maeeage")
msg['From'] = <sender-email>
msg['To'] = <reciver-email>
msg['Subject'] = "your_subject"
server = smtplib.SMTP(<server>,<port>)
server.starttls()
server.login(Username,password)
server.sendmail(from_addr,to_addr,msg.as_string())

Answer 2

格式是一种很好的了解方法，它允许您将占位符放在列表中。 当然，您可以在此处简单地追加到列表，但这很有用。 使用join将字符串列表格式化为单个字符串，此处用换行符（ \\n ）分隔。

msg = """Subject:Big Bro FTP issue.
From: xxx@xxx.com
To:  xxx@xxx.com

{}
""".format('\n'.join(exceptions))

要么：

msg = """Subject:Big Bro FTP issue.
    From: xxx@xxx.com
    To:  xxx@xxx.com
""" + '\n'.join(exceptions)