使用signal自動添加profile

class Profile(models.Model):
    user = models.ForeignKey(User, unique=True)
    address = models.CharField(max_length=255, blank=True)
    nickname = models.CharField(max_length=96, blank=True)
    signature = models.CharField(max_length=1024, blank=True)
    blog = models.CharField(max_length=255, blank=True)
    introduction = models.CharField(max_length=2048, blank=True)
    image = models.ImageField(upload_to="avatars/%Y/%m/%d",default="avatars/generic.96.jpg")

    def __unicode__(self):
        return _("%s's profile") % self.user

def user_post_save(sender, instance, **kwargs):
    profile, new = Profile.objects.get_or_create(user=instance)
models.signals.post_save.connect(user_post_save, sender=User)

settings.py
AUTH_PROFILE_MODULE = 'account.profile'