ValueError:需要多个值才能解压，Django电子邮件错误 [英] ValueError: need more than 1 value to unpack, django email error

问题描述

我正在尝试使用django同时向一群人发送电子邮件(尽管现在，我正在尝试使其仅与一个人一起使用).我有一个名为User的类，该类具有一个字段email和一个名为Group的类的外键.现在，我正在尝试向特定组中的所有用户发送电子邮件.为此，我有以下代码:

I'm trying to use django to send emails to a bunch of people at the same time (although right now, I'm trying to get it to work with only one). I have a class called User that has a field email and a foreign-key to a class called Group. Now, I'm trying to send an email to all users in a specific group. To do that, I have the following code:

addresses = User.objects.filter(group__group='Operations').values_list('email')

这可以正确获取电子邮件地址(如果我打印出addresses，我会得到[(u'[e-mail]',)].然后我使用addresses创建电子邮件:

This is correctly getting the email addresses (if I print the addresses I get [(u'[e-mail]',)]. I then use addresses to create an email:

email = EmailMessage('Test', 
         get_template('test.html').render(Context({'content': 'This is a TEST!'})),
         to = addresses) 

当我之前进行此操作时，手动将电子邮件地址传递给"to"参数，它可以正常工作，但是现在它给我标题中的错误:"ValueError:需要多个值来解压.似乎会导致错误的代码行是email.send().

When I was doing this before, manually passing in an email address to the "to" argument, it worked perfectly, however now it gives me the error in the title: "ValueError: need more than 1 value to unpack. The line of code that seems to create the error is email.send().

此错误是什么意思?我为什么要得到它?我该如何解决?是否有更好的方法从所有具有指定组的用户中获取电子邮件地址?

What does this error mean? Why am I getting it? How should I fix it? Is there a better way to get the email addresses out of all the users with the specified group?

谢谢.

推荐答案

找到了解决方案.实际上很简单.

Found a solution. Very simple, actually.

addresses = User.objects.filter(group__group='Operations').values_list('email', flat=True)

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