Remove compatibility for Python < 3.9

Author: ulgens

tests/django_restframework_gis_tests/migrations/0001_initial.py

@@ -1,6 +1,4 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.9.4 on 2016-04-01 17:00
-from __future__ import unicode_literals
 
 import django.contrib.gis.db.models.fields
 from django.db import migrations, models

tests/django_restframework_gis_tests/tests.py

@@ -285,10 +285,7 @@ def test_geojson_format(self):
             'geometry': {'type': 'Point', 'coordinates': [135.0, 45.0]},
         }
         response = self.client.get(url)
-        if sys.version_info > (3, 0, 0):
-            self.assertCountEqual(json.dumps(response.data), json.dumps(expected))
-        else:
-            self.assertItemsEqual(json.dumps(response.data), json.dumps(expected))
+        self.assertCountEqual(json.dumps(response.data), json.dumps(expected))
         response = self.client.get(url, headers={"accept": 'text/html'})
         self.assertContains(response, "Kool geojson test")
 
@@ -550,10 +547,6 @@ def test_geojson_HTML_widget_value_pre_drf_39(self):
         self.assertContains(response, '<textarea name="geometry"')
         self.assertContains(response, '&quot;type&quot;: &quot;Point&quot;')
         self.assertContains(response, '&quot;coordinates&quot;: [')
-        # TODO: remove this when python 2 will be deprecated
-        self.assertNotContains(
-            response, 'u&#39;type&#39;: u&#39;Point&#39;, u&#39;coordinates&#39;:'
-        )
 
     def test_patch_geojson_location(self):
         location = Location.objects.create(
@@ -769,8 +762,5 @@ def test_geometrycollection_geojson(self):
             },
         }
         response = self.client.get(url)
-        if sys.version_info > (3, 0, 0):
-            self.assertCountEqual(json.dumps(response.data), json.dumps(expected))
-        else:
-            self.assertItemsEqual(json.dumps(response.data), json.dumps(expected))
+        self.assertCountEqual(json.dumps(response.data), json.dumps(expected))
         self.assertContains(response, "Kool geometry collection geojson test")