old_contents: #!/usr/bin/env python
  # vim: ai ts=4 sts=4 et sw=4
  
  
  from django.db import models
  from ...models import Location
  
  
  class ContactLocation(models.Model):
      location = models.ForeignKey(Location, null=True, blank=True, help_text=
          "The location which this Contact last reported from.")
  
      class Meta:
          abstract = True
  
new_contents: #!/usr/bin/env python
  # vim: ai ts=4 sts=4 et sw=4
  
  
  from django.db import models
  
  
  class ContactLocation(models.Model):
      location = models.ForeignKey('locations.Location', null=True, blank=True, help_text=
          "The location which this Contact last reported from.")
  
      class Meta:
          abstract = True
  
subject: remove recursive import from locations app