3.2, 3.3 compat

rest_framework/__init__.py

 __version__ = '2.1.17'
 
 VERSION = __version__  # synonym
+
+# Header encoding (see RFC5987)
+HTTP_HEADER_ENCODING = 'iso-8859-1'

rest_framework/authentication.py

 """
 Provides a set of pluggable authentication policies.
 """
+from __future__ import unicode_literals
 
 from django.contrib.auth import authenticate
 from django.utils.encoding import DjangoUnicodeDecodeError
-from rest_framework import exceptions
+from rest_framework import exceptions, HTTP_HEADER_ENCODING
 from rest_framework.compat import CsrfViewMiddleware
 from rest_framework.compat import smart_text
 from rest_framework.authtoken.models import Token
@@ -43,23 +44,25 @@ class BasicAuthentication(BaseAuthentication):
         Returns a `User` if a correct username and password have been supplied
         using HTTP Basic authentication.  Otherwise returns `None`.
         """
-        auth = request.META.get('HTTP_AUTHORIZATION', '').split()
+        auth = request.META.get('HTTP_AUTHORIZATION', b'')
+        if type(auth) == type(''):
+            # Work around django test client oddness
+            auth = auth.encode(HTTP_HEADER_ENCODING)
+        auth = auth.split()
 
-        if not auth or auth[0].lower() != "basic":
+        if not auth or auth[0].lower() != b'basic':
             return None
 
         if len(auth) != 2:
             raise exceptions.AuthenticationFailed('Invalid basic header')
 
-        encoding = api_settings.HTTP_HEADER_ENCODING
         try:
-            auth_parts = base64.b64decode(auth[1].encode(encoding)).partition(':')
-        except TypeError:
+            auth_parts = base64.b64decode(auth[1]).decode(HTTP_HEADER_ENCODING).partition(':')
+        except (TypeError, UnicodeDecodeError):
             raise exceptions.AuthenticationFailed('Invalid basic header')
 
         try:
-            userid = smart_text(auth_parts[0])
-            password = smart_text(auth_parts[2])
+            userid, password = auth_parts[0], auth_parts[2]
         except DjangoUnicodeDecodeError:
             raise exceptions.AuthenticationFailed('Invalid basic header')
 

rest_framework/relations.py

@@ -311,7 +311,7 @@ class SlugRelatedField(RelatedField):
             return self.queryset.get(**{self.slug_field: data})
         except ObjectDoesNotExist:
             raise ValidationError(self.error_messages['does_not_exist'] %
-                                  (self.slug_field, unicode(data)))
+                                  (self.slug_field, smart_text(data)))
         except (TypeError, ValueError):
             msg = self.error_messages['invalid']
             raise ValidationError(msg)

rest_framework/serializers.py

@@ -212,7 +212,7 @@ class BaseSerializer(Field):
         reverted_data = {}
 
         if data is not None and not isinstance(data, dict):
-            self._errors['non_field_errors'] = [u'Invalid data']
+            self._errors['non_field_errors'] = ['Invalid data']
             return None
 
         for field_name, field in self.fields.items():
@@ -287,7 +287,7 @@ class BaseSerializer(Field):
         """
         Deserialize primitives -> objects.
         """
-        if hasattr(data, '__iter__') and not isinstance(data, dict):
+        if hasattr(data, '__iter__') and not isinstance(data, (dict, six.text_type)):
             # TODO: error data when deserializing lists
             return [self.from_native(item, None) for item in data]
 
@@ -525,7 +525,7 @@ class ModelSerializer(Serializer):
         """
         try:
             instance.full_clean(exclude=self.get_validation_exclusions())
-        except ValidationError, err:
+        except ValidationError as err:
             self._errors = err.message_dict
             return None
         return instance

rest_framework/settings.py

@@ -75,9 +75,6 @@ DEFAULTS = {
     'URL_FORMAT_OVERRIDE': 'format',
 
     'FORMAT_SUFFIX_KWARG': 'format',
-
-    # Header encoding (see RFC5987)
-    'HTTP_HEADER_ENCODING': 'iso-8859-1',
 }
 
 

rest_framework/tests/authentication.py

+from __future__ import unicode_literals
+
 from django.contrib.auth.models import User
 from django.http import HttpResponse
 from django.test import Client, TestCase
+from rest_framework import HTTP_HEADER_ENCODING
 from rest_framework import permissions
 from rest_framework.authtoken.models import Token
 from rest_framework.authentication import TokenAuthentication, BasicAuthentication, SessionAuthentication
@@ -41,13 +44,17 @@ class BasicAuthTests(TestCase):
 
     def test_post_form_passing_basic_auth(self):
         """Ensure POSTing json over basic auth with correct credentials passes and does not require CSRF"""
-        auth = 'Basic %s' % base64.encodestring('%s:%s' % (self.username, self.password)).encode('iso-8859-1').strip().decode('iso-8859-1')
+        credentials = ('%s:%s' % (self.username, self.password))
+        base64_credentials = base64.b64encode(credentials.encode(HTTP_HEADER_ENCODING)).decode(HTTP_HEADER_ENCODING)
+        auth = 'Basic %s' % base64_credentials
         response = self.csrf_client.post('/basic/', {'example': 'example'}, HTTP_AUTHORIZATION=auth)
         self.assertEqual(response.status_code, 200)
 
     def test_post_json_passing_basic_auth(self):
         """Ensure POSTing form over basic auth with correct credentials passes and does not require CSRF"""
-        auth = 'Basic %s' % base64.encodestring('%s:%s' % (self.username, self.password)).encode('iso-8859-1').strip().decode('iso-8859-1')
+        credentials = ('%s:%s' % (self.username, self.password))
+        base64_credentials = base64.b64encode(credentials.encode(HTTP_HEADER_ENCODING)).decode(HTTP_HEADER_ENCODING)
+        auth = 'Basic %s' % base64_credentials
         response = self.csrf_client.post('/basic/', json.dumps({'example': 'example'}), 'application/json', HTTP_AUTHORIZATION=auth)
         self.assertEqual(response.status_code, 200)
 

rest_framework/tests/genericrelations.py

@@ -86,16 +86,16 @@ class TestGenericRelations(TestCase):
         serializer = TagSerializer(Tag.objects.all())
         expected = [
         {
-            'tag': u'django',
-            'tagged_item': u'Bookmark: https://www.djangoproject.com/'
+            'tag': 'django',
+            'tagged_item': 'Bookmark: https://www.djangoproject.com/'
         },
         {
-            'tag': u'python',
-            'tagged_item': u'Bookmark: https://www.djangoproject.com/'
+            'tag': 'python',
+            'tagged_item': 'Bookmark: https://www.djangoproject.com/'
         },
         {
-            'tag': u'reminder',
-            'tagged_item': u'Note: Remember the milk'
+            'tag': 'reminder',
+            'tagged_item': 'Note: Remember the milk'
         }
         ]
         self.assertEquals(serializer.data, expected)

rest_framework/tests/relations_hyperlink.py

@@ -218,11 +218,11 @@ class HyperlinkedForeignKeyTests(TestCase):
         self.assertEquals(serializer.data, expected)
 
     def test_foreign_key_update_incorrect_type(self):
-        data = {'url': '/foreignkeysource/1/', 'name': u'source-1', 'target': 2}
+        data = {'url': '/foreignkeysource/1/', 'name': 'source-1', 'target': 2}
         instance = ForeignKeySource.objects.get(pk=1)
         serializer = ForeignKeySourceSerializer(instance, data=data)
         self.assertFalse(serializer.is_valid())
-        self.assertEquals(serializer.errors, {'target': [u'Incorrect type.  Expected url string, received int.']})
+        self.assertEquals(serializer.errors, {'target': ['Incorrect type.  Expected url string, received int.']})
 
     def test_reverse_foreign_key_update(self):
         data = {'url': '/foreignkeytarget/2/', 'name': 'target-2', 'sources': ['/foreignkeysource/1/', '/foreignkeysource/3/']}
@@ -439,7 +439,7 @@ class HyperlinkedNullableOneToOneTests(TestCase):
         queryset = OneToOneTarget.objects.all()
         serializer = NullableOneToOneTargetSerializer(queryset)
         expected = [
-            {'url': '/onetoonetarget/1/', 'name': u'target-1', 'nullable_source': '/nullableonetoonesource/1/'},
-            {'url': '/onetoonetarget/2/', 'name': u'target-2', 'nullable_source': None},
+            {'url': '/onetoonetarget/1/', 'name': 'target-1', 'nullable_source': '/nullableonetoonesource/1/'},
+            {'url': '/onetoonetarget/2/', 'name': 'target-2', 'nullable_source': None},
         ]
         self.assertEquals(serializer.data, expected)

rest_framework/tests/relations_nested.py

@@ -109,7 +109,7 @@ class NestedNullableOneToOneTests(TestCase):
         queryset = OneToOneTarget.objects.all()
         serializer = NullableOneToOneTargetSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'target-1', 'nullable_source': {'id': 1, 'name': u'source-1', 'target': 1}},
-            {'id': 2, 'name': u'target-2', 'nullable_source': None},
+            {'id': 1, 'name': 'target-1', 'nullable_source': {'id': 1, 'name': 'source-1', 'target': 1}},
+            {'id': 2, 'name': 'target-2', 'nullable_source': None},
         ]
         self.assertEquals(serializer.data, expected)

rest_framework/tests/relations_pk.py

@@ -198,11 +198,11 @@ class PKForeignKeyTests(TestCase):
         self.assertEquals(serializer.data, expected)
 
     def test_foreign_key_update_incorrect_type(self):
-        data = {'id': 1, 'name': u'source-1', 'target': 'foo'}
+        data = {'id': 1, 'name': 'source-1', 'target': 'foo'}
         instance = ForeignKeySource.objects.get(pk=1)
         serializer = ForeignKeySourceSerializer(instance, data=data)
         self.assertFalse(serializer.is_valid())
-        self.assertEquals(serializer.errors, {'target': [u'Incorrect type.  Expected pk value, received str.']})
+        self.assertEquals(serializer.errors, {'target': ['Incorrect type.  Expected pk value, received str.']})
 
     def test_reverse_foreign_key_update(self):
         data = {'id': 2, 'name': 'target-2', 'sources': [1, 3]}
@@ -415,7 +415,7 @@ class PKNullableOneToOneTests(TestCase):
         queryset = OneToOneTarget.objects.all()
         serializer = NullableOneToOneTargetSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'target-1', 'nullable_source': 1},
-            {'id': 2, 'name': u'target-2', 'nullable_source': None},
+            {'id': 1, 'name': 'target-1', 'nullable_source': 1},
+            {'id': 2, 'name': 'target-2', 'nullable_source': None},
         ]
         self.assertEquals(serializer.data, expected)

rest_framework/tests/relations_slug.py

@@ -39,9 +39,9 @@ class PKForeignKeyTests(TestCase):
         queryset = ForeignKeySource.objects.all()
         serializer = ForeignKeySourceSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'source-1', 'target': 'target-1'},
-            {'id': 2, 'name': u'source-2', 'target': 'target-1'},
-            {'id': 3, 'name': u'source-3', 'target': 'target-1'}
+            {'id': 1, 'name': 'source-1', 'target': 'target-1'},
+            {'id': 2, 'name': 'source-2', 'target': 'target-1'},
+            {'id': 3, 'name': 'source-3', 'target': 'target-1'}
         ]
         self.assertEquals(serializer.data, expected)
 
@@ -49,13 +49,13 @@ class PKForeignKeyTests(TestCase):
         queryset = ForeignKeyTarget.objects.all()
         serializer = ForeignKeyTargetSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'target-1', 'sources': ['source-1', 'source-2', 'source-3']},
-            {'id': 2, 'name': u'target-2', 'sources': []},
+            {'id': 1, 'name': 'target-1', 'sources': ['source-1', 'source-2', 'source-3']},
+            {'id': 2, 'name': 'target-2', 'sources': []},
         ]
         self.assertEquals(serializer.data, expected)
 
     def test_foreign_key_update(self):
-        data = {'id': 1, 'name': u'source-1', 'target': 'target-2'}
+        data = {'id': 1, 'name': 'source-1', 'target': 'target-2'}
         instance = ForeignKeySource.objects.get(pk=1)
         serializer = ForeignKeySourceSerializer(instance, data=data)
         self.assertTrue(serializer.is_valid())
@@ -66,21 +66,21 @@ class PKForeignKeyTests(TestCase):
         queryset = ForeignKeySource.objects.all()
         serializer = ForeignKeySourceSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'source-1', 'target': 'target-2'},
-            {'id': 2, 'name': u'source-2', 'target': 'target-1'},
-            {'id': 3, 'name': u'source-3', 'target': 'target-1'}
+            {'id': 1, 'name': 'source-1', 'target': 'target-2'},
+            {'id': 2, 'name': 'source-2', 'target': 'target-1'},
+            {'id': 3, 'name': 'source-3', 'target': 'target-1'}
         ]
         self.assertEquals(serializer.data, expected)
 
     def test_foreign_key_update_incorrect_type(self):
-        data = {'id': 1, 'name': u'source-1', 'target': 123}
+        data = {'id': 1, 'name': 'source-1', 'target': 123}
         instance = ForeignKeySource.objects.get(pk=1)
         serializer = ForeignKeySourceSerializer(instance, data=data)
         self.assertFalse(serializer.is_valid())
-        self.assertEquals(serializer.errors, {'target': [u'Object with name=123 does not exist.']})
+        self.assertEquals(serializer.errors, {'target': ['Object with name=123 does not exist.']})
 
     def test_reverse_foreign_key_update(self):
-        data = {'id': 2, 'name': u'target-2', 'sources': ['source-1', 'source-3']}
+        data = {'id': 2, 'name': 'target-2', 'sources': ['source-1', 'source-3']}
         instance = ForeignKeyTarget.objects.get(pk=2)
         serializer = ForeignKeyTargetSerializer(instance, data=data)
         self.assertTrue(serializer.is_valid())
@@ -89,8 +89,8 @@ class PKForeignKeyTests(TestCase):
         queryset = ForeignKeyTarget.objects.all()
         new_serializer = ForeignKeyTargetSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'target-1', 'sources': ['source-1', 'source-2', 'source-3']},
-            {'id': 2, 'name': u'target-2', 'sources': []},
+            {'id': 1, 'name': 'target-1', 'sources': ['source-1', 'source-2', 'source-3']},
+            {'id': 2, 'name': 'target-2', 'sources': []},
         ]
         self.assertEquals(new_serializer.data, expected)
 
@@ -101,55 +101,55 @@ class PKForeignKeyTests(TestCase):
         queryset = ForeignKeyTarget.objects.all()
         serializer = ForeignKeyTargetSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'target-1', 'sources': ['source-2']},
-            {'id': 2, 'name': u'target-2', 'sources': ['source-1', 'source-3']},
+            {'id': 1, 'name': 'target-1', 'sources': ['source-2']},
+            {'id': 2, 'name': 'target-2', 'sources': ['source-1', 'source-3']},
         ]
         self.assertEquals(serializer.data, expected)
 
     def test_foreign_key_create(self):
-        data = {'id': 4, 'name': u'source-4', 'target': 'target-2'}
+        data = {'id': 4, 'name': 'source-4', 'target': 'target-2'}
         serializer = ForeignKeySourceSerializer(data=data)
         serializer.is_valid()
         self.assertTrue(serializer.is_valid())
         obj = serializer.save()
         self.assertEquals(serializer.data, data)
-        self.assertEqual(obj.name, u'source-4')
+        self.assertEqual(obj.name, 'source-4')
 
         # Ensure source 4 is added, and everything else is as expected
         queryset = ForeignKeySource.objects.all()
         serializer = ForeignKeySourceSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'source-1', 'target': 'target-1'},
-            {'id': 2, 'name': u'source-2', 'target': 'target-1'},
-            {'id': 3, 'name': u'source-3', 'target': 'target-1'},
-            {'id': 4, 'name': u'source-4', 'target': 'target-2'},
+            {'id': 1, 'name': 'source-1', 'target': 'target-1'},
+            {'id': 2, 'name': 'source-2', 'target': 'target-1'},
+            {'id': 3, 'name': 'source-3', 'target': 'target-1'},
+            {'id': 4, 'name': 'source-4', 'target': 'target-2'},
         ]
         self.assertEquals(serializer.data, expected)
 
     def test_reverse_foreign_key_create(self):
-        data = {'id': 3, 'name': u'target-3', 'sources': ['source-1', 'source-3']}
+        data = {'id': 3, 'name': 'target-3', 'sources': ['source-1', 'source-3']}
         serializer = ForeignKeyTargetSerializer(data=data)
         self.assertTrue(serializer.is_valid())
         obj = serializer.save()
         self.assertEquals(serializer.data, data)
-        self.assertEqual(obj.name, u'target-3')
+        self.assertEqual(obj.name, 'target-3')
 
         # Ensure target 3 is added, and everything else is as expected
         queryset = ForeignKeyTarget.objects.all()
         serializer = ForeignKeyTargetSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'target-1', 'sources': ['source-2']},
-            {'id': 2, 'name': u'target-2', 'sources': []},
-            {'id': 3, 'name': u'target-3', 'sources': ['source-1', 'source-3']},
+            {'id': 1, 'name': 'target-1', 'sources': ['source-2']},
+            {'id': 2, 'name': 'target-2', 'sources': []},
+            {'id': 3, 'name': 'target-3', 'sources': ['source-1', 'source-3']},
         ]
         self.assertEquals(serializer.data, expected)
 
     def test_foreign_key_update_with_invalid_null(self):
-        data = {'id': 1, 'name': u'source-1', 'target': None}
+        data = {'id': 1, 'name': 'source-1', 'target': None}
         instance = ForeignKeySource.objects.get(pk=1)
         serializer = ForeignKeySourceSerializer(instance, data=data)
         self.assertFalse(serializer.is_valid())
-        self.assertEquals(serializer.errors, {'target': [u'Value may not be null']})
+        self.assertEquals(serializer.errors, {'target': ['Value may not be null']})
 
 
 class SlugNullableForeignKeyTests(TestCase):
@@ -166,28 +166,28 @@ class SlugNullableForeignKeyTests(TestCase):
         queryset = NullableForeignKeySource.objects.all()
         serializer = NullableForeignKeySourceSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'source-1', 'target': 'target-1'},
-            {'id': 2, 'name': u'source-2', 'target': 'target-1'},
-            {'id': 3, 'name': u'source-3', 'target': None},
+            {'id': 1, 'name': 'source-1', 'target': 'target-1'},
+            {'id': 2, 'name': 'source-2', 'target': 'target-1'},
+            {'id': 3, 'name': 'source-3', 'target': None},
         ]
         self.assertEquals(serializer.data, expected)
 
     def test_foreign_key_create_with_valid_null(self):
-        data = {'id': 4, 'name': u'source-4', 'target': None}
+        data = {'id': 4, 'name': 'source-4', 'target': None}
         serializer = NullableForeignKeySourceSerializer(data=data)
         self.assertTrue(serializer.is_valid())
         obj = serializer.save()
         self.assertEquals(serializer.data, data)
-        self.assertEqual(obj.name, u'source-4')
+        self.assertEqual(obj.name, 'source-4')
 
         # Ensure source 4 is created, and everything else is as expected
         queryset = NullableForeignKeySource.objects.all()
         serializer = NullableForeignKeySourceSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'source-1', 'target': 'target-1'},
-            {'id': 2, 'name': u'source-2', 'target': 'target-1'},
-            {'id': 3, 'name': u'source-3', 'target': None},
-            {'id': 4, 'name': u'source-4', 'target': None}
+            {'id': 1, 'name': 'source-1', 'target': 'target-1'},
+            {'id': 2, 'name': 'source-2', 'target': 'target-1'},
+            {'id': 3, 'name': 'source-3', 'target': None},
+            {'id': 4, 'name': 'source-4', 'target': None}
         ]
         self.assertEquals(serializer.data, expected)
 
@@ -196,27 +196,27 @@ class SlugNullableForeignKeyTests(TestCase):
         The emptystring should be interpreted as null in the context
         of relationships.
         """
-        data = {'id': 4, 'name': u'source-4', 'target': ''}
-        expected_data = {'id': 4, 'name': u'source-4', 'target': None}
+        data = {'id': 4, 'name': 'source-4', 'target': ''}
+        expected_data = {'id': 4, 'name': 'source-4', 'target': None}
         serializer = NullableForeignKeySourceSerializer(data=data)
         self.assertTrue(serializer.is_valid())
         obj = serializer.save()
         self.assertEquals(serializer.data, expected_data)
-        self.assertEqual(obj.name, u'source-4')
+        self.assertEqual(obj.name, 'source-4')
 
         # Ensure source 4 is created, and everything else is as expected
         queryset = NullableForeignKeySource.objects.all()
         serializer = NullableForeignKeySourceSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'source-1', 'target': 'target-1'},
-            {'id': 2, 'name': u'source-2', 'target': 'target-1'},
-            {'id': 3, 'name': u'source-3', 'target': None},
-            {'id': 4, 'name': u'source-4', 'target': None}
+            {'id': 1, 'name': 'source-1', 'target': 'target-1'},
+            {'id': 2, 'name': 'source-2', 'target': 'target-1'},
+            {'id': 3, 'name': 'source-3', 'target': None},
+            {'id': 4, 'name': 'source-4', 'target': None}
         ]
         self.assertEquals(serializer.data, expected)
 
     def test_foreign_key_update_with_valid_null(self):
-        data = {'id': 1, 'name': u'source-1', 'target': None}
+        data = {'id': 1, 'name': 'source-1', 'target': None}
         instance = NullableForeignKeySource.objects.get(pk=1)
         serializer = NullableForeignKeySourceSerializer(instance, data=data)
         self.assertTrue(serializer.is_valid())
@@ -227,9 +227,9 @@ class SlugNullableForeignKeyTests(TestCase):
         queryset = NullableForeignKeySource.objects.all()
         serializer = NullableForeignKeySourceSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'source-1', 'target': None},
-            {'id': 2, 'name': u'source-2', 'target': 'target-1'},
-            {'id': 3, 'name': u'source-3', 'target': None}
+            {'id': 1, 'name': 'source-1', 'target': None},
+            {'id': 2, 'name': 'source-2', 'target': 'target-1'},
+            {'id': 3, 'name': 'source-3', 'target': None}
         ]
         self.assertEquals(serializer.data, expected)
 
@@ -238,8 +238,8 @@ class SlugNullableForeignKeyTests(TestCase):
         The emptystring should be interpreted as null in the context
         of relationships.
         """
-        data = {'id': 1, 'name': u'source-1', 'target': ''}
-        expected_data = {'id': 1, 'name': u'source-1', 'target': None}
+        data = {'id': 1, 'name': 'source-1', 'target': ''}
+        expected_data = {'id': 1, 'name': 'source-1', 'target': None}
         instance = NullableForeignKeySource.objects.get(pk=1)
         serializer = NullableForeignKeySourceSerializer(instance, data=data)
         self.assertTrue(serializer.is_valid())
@@ -250,8 +250,8 @@ class SlugNullableForeignKeyTests(TestCase):
         queryset = NullableForeignKeySource.objects.all()
         serializer = NullableForeignKeySourceSerializer(queryset)
         expected = [
-            {'id': 1, 'name': u'source-1', 'target': None},
-            {'id': 2, 'name': u'source-2', 'target': 'target-1'},
-            {'id': 3, 'name': u'source-3', 'target': None}
+            {'id': 1, 'name': 'source-1', 'target': None},
+            {'id': 2, 'name': 'source-2', 'target': 'target-1'},
+            {'id': 3, 'name': 'source-3', 'target': None}
         ]
         self.assertEquals(serializer.data, expected)

rest_framework/tests/serializer.py

@@ -236,17 +236,17 @@ class ValidationTests(TestCase):
         data = ['i am', 'a', 'list']
         serializer = CommentSerializer(self.comment, data=data)
         self.assertEquals(serializer.is_valid(), False)
-        self.assertEquals(serializer.errors, {'non_field_errors': [u'Invalid data']})
+        self.assertEquals(serializer.errors, {'non_field_errors': ['Invalid data']})
 
         data = 'and i am a string'
         serializer = CommentSerializer(self.comment, data=data)
         self.assertEquals(serializer.is_valid(), False)
-        self.assertEquals(serializer.errors, {'non_field_errors': [u'Invalid data']})
+        self.assertEquals(serializer.errors, {'non_field_errors': ['Invalid data']})
 
         data = 42
         serializer = CommentSerializer(self.comment, data=data)
         self.assertEquals(serializer.is_valid(), False)
-        self.assertEquals(serializer.errors, {'non_field_errors': [u'Invalid data']})
+        self.assertEquals(serializer.errors, {'non_field_errors': ['Invalid data']})
 
     def test_cross_field_validation(self):
 
@@ -300,7 +300,7 @@ class ValidationTests(TestCase):
         }
         serializer = ActionItemSerializerCustomRestore(data=data)
         self.assertEquals(serializer.is_valid(), False)
-        self.assertEquals(serializer.errors, {'title': [u'Ensure this value has at most 200 characters (it has 201).']})
+        self.assertEquals(serializer.errors, {'title': ['Ensure this value has at most 200 characters (it has 201).']})
 
     def test_default_modelfield_max_length_exceeded(self):
         data = {
@@ -340,7 +340,7 @@ class CustomValidationTests(TestCase):
 
         serializer = self.CommentSerializerWithFieldValidator(data=data)
         self.assertFalse(serializer.is_valid())
-        self.assertEquals(serializer.errors, {'content': [u'Test not in value']})
+        self.assertEquals(serializer.errors, {'content': ['Test not in value']})
 
     def test_missing_data(self):
         """
@@ -352,7 +352,7 @@ class CustomValidationTests(TestCase):
         }
         serializer = self.CommentSerializerWithFieldValidator(data=incomplete_data)
         self.assertFalse(serializer.is_valid())
-        self.assertEquals(serializer.errors, {'content': [u'This field is required.']})
+        self.assertEquals(serializer.errors, {'content': ['This field is required.']})
 
     def test_wrong_data(self):
         """
@@ -365,7 +365,7 @@ class CustomValidationTests(TestCase):
         }
         serializer = self.CommentSerializerWithFieldValidator(data=wrong_data)
         self.assertFalse(serializer.is_valid())
-        self.assertEquals(serializer.errors, {'email': [u'Enter a valid e-mail address.']})
+        self.assertEquals(serializer.errors, {'email': ['Enter a valid e-mail address.']})
 
 
 class PositiveIntegerAsChoiceTests(TestCase):

rest_framework/tests/utils.py

 from django.test.client import RequestFactory, FakePayload
 from django.test.client import MULTIPART_CONTENT
-from urlparse import urlparse
+from rest_framework.compat import urlparse
 
 
 class RequestFactory(RequestFactory):
@@ -14,7 +14,7 @@ class RequestFactory(RequestFactory):
 
         patch_data = self._encode_data(data, content_type)
 
-        parsed = urlparse(path)
+        parsed = urlparse.urlparse(path)
         r = {
             'CONTENT_LENGTH': len(patch_data),
             'CONTENT_TYPE':   content_type,

rest_framework/tests/validators.py

@@ -139,7 +139,7 @@
 #         raise errors on unexpected request data"""
 #         content = {'qwerty': 'uiop', 'extra': 'extra'}
 #         validator.allow_unknown_form_fields = True
-#         self.assertEqual({'qwerty': u'uiop'},
+#         self.assertEqual({'qwerty': 'uiop'},
 #                          validator.validate_request(content, None),
 #                          "Resource didn't accept unknown fields.")
 #         validator.allow_unknown_form_fields = False

tox.ini

 [tox]
 downloadcache = {toxworkdir}/cache/
-envlist = py2.7-django1.5,py2.7-django1.4,py2.7-django1.3,py2.6-django1.5,py2.6-django1.4,py2.6-django1.3
+envlist = py3.3-django1.5,py3.2-django1.5,py2.7-django1.5,py2.7-django1.4,py2.7-django1.3,py2.6-django1.5,py2.6-django1.4,py2.6-django1.3
 
 [testenv]
 commands = {envpython} rest_framework/runtests/runtests.py
 
-[testenv:py2.7-django1.5]
-basepython = python2.7
-deps = https://github.com/django/django/zipball/master
+[testenv:py3.3-django1.5]
+basepython = python3.3
+deps = https://www.djangoproject.com/download/1.5c1/tarball/
        django-filter==0.5.4
 
-[testenv:py2.7-django1.4]
-basepython = python2.7
-deps = django==1.4.3
+[testenv:py3.2-django1.5]
+basepython = python3.2
+deps = https://www.djangoproject.com/download/1.5c1/tarball/
        django-filter==0.5.4
 
-[testenv:py2.7-django1.3]
+[testenv:py2.7-django1.5]
 basepython = python2.7
-deps = django==1.3.5
+deps = https://www.djangoproject.com/download/1.5c1/tarball/
        django-filter==0.5.4
 
 [testenv:py2.6-django1.5]
 basepython = python2.6
-deps = https://github.com/django/django/zipball/master
+deps = https://www.djangoproject.com/download/1.5c1/tarball/
+       django-filter==0.5.4
+
+[testenv:py2.7-django1.4]
+basepython = python2.7
+deps = django==1.4.3
        django-filter==0.5.4
 
 [testenv:py2.6-django1.4]
@@ -30,7 +35,14 @@ basepython = python2.6
 deps = django==1.4.3
        django-filter==0.5.4
 
+[testenv:py2.7-django1.3]
+basepython = python2.7
+deps = django==1.3.5
+       django-filter==0.5.4
+       six
+
 [testenv:py2.6-django1.3]
 basepython = python2.6
 deps = django==1.3.5
        django-filter==0.5.4
+       six