Fixed #13670 -- Comparisons with the spatial adapter won't blow up in some...

        self.srid = geom.srid

    def __eq__(self, other):

        if not isinstance(other, WKTAdapter):

            return False

        return self.wkt == other.wkt and self.srid == other.srid

    def __str__(self):

            raise Exception('Error implementing psycopg2 protocol. Is psycopg2 installed?')

    def __eq__(self, other):

        if not isinstance(other, PostGISAdapter):

            return False

        return (self.ewkb == other.ewkb) and (self.srid == other.srid)

    def __str__(self):

from django.contrib.gis.tests.utils import no_mysql, no_spatialite

from django.contrib.gis.shortcuts import render_to_kmz

from django.test import TestCase

from models import City, PennsylvaniaCity

from models import City, PennsylvaniaCity, State

class GeoRegressionTests(TestCase):

        mansfield = PennsylvaniaCity.objects.create(name='Mansfield', county='Tioga', point='POINT(-77.071445 41.823881)',

                                                    founded=founded)

        self.assertEqual(founded, PennsylvaniaCity.objects.dates('founded', 'day')[0])

    def test05_empty_count(self):

         "Testing that PostGISAdapter.__eq__ does check empty strings, see #13670"

         # contrived example, but need a geo lookup paired with an id__in lookup

         pueblo = City.objects.get(name='Pueblo')

         state = State.objects.filter(poly__contains=pueblo.point)

         cities_within_state = City.objects.filter(id__in=state)

         # .count() should not throw TypeError in __eq__

         self.assertEqual(cities_within_state.count(), 1)