beginner whitespace question

[eggie5]

I keep getting an error for line 7, what's wrong with this?

from django.db import models

class Poll(models.Model):
    question = models.CharField(max_length=200)
    pub_date = models.DateTimeField('date published')

        def __unicode__(self):
                return self.question

        def was_published_today(self):
                return self.pub_date.date() == datetime.date.today()

class Choice(models.Model):
    poll = models.ForeignKey(Poll)
    choice = models.CharField(max_length=200)
    votes = models.IntegerField()

        def __unicode__(self):
                return self.choice

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