title: Django get_profile() method not working on extended User model
body: <p>I have a model in an app named <code>user_profile</code> like so:</p>
  
  <pre><code>from django.db import models
  from django.contrib.auth.models import User
  
  class UserProfile(models.Model):
      user = models.OneToOneField(User)
  
      def __unicode__(self):
          return self.user.username
  </code></pre>
  
  <p>and in my settings:</p>
  
  <pre><code>AUTH_PROFILE_MODULE = 'user_profile.UserProfile'
  </code></pre>
  
  <p>But if I try:</p>
  
  <pre><code>u = UserProfile.objects.get(pk=1)
  p = u.get_profile()
  </code></pre>
  
  <p>I get the following error:</p>
  
  <pre><code>AttributeError: 'UserProfile' object has no attribute 'get_profile'
  </code></pre>
  
  <p>What am I missing here?</p>
  
  <p>Any help would be much appreciated.</p>