new_contents: from django.contrib.gis import admin
  
  from cities.models import *
  
  class CityAdmin(admin.OSMGeoAdmin):
  	list_display = ('__unicode__', 'population_2000')
  	list_filter = ('pop_range',)
  	search_fields = ('name',)
  
  admin.site.register(City, CityAdmin)
  
subject: Add an admin class so Cities show up there