15 files changed, 31 insertions, 52 deletions

diff --git a/rest_framework/compat.py b/rest_framework/compat.py
index eefaf22e..91723b45 100644
--- a/rest_framework/compat.py
+++ b/rest_framework/compat.py
@@ -9,31 +9,19 @@ from __future__ import unicode_literals
 import inspect
 
 from django.core.exceptions import ImproperlyConfigured
+from django.utils.encoding import force_text
 from django.conf import settings
 from django.utils import six
 import django
 
 
-# Handle django.utils.encoding rename in 1.5 onwards.
-# smart_unicode -> smart_text
-# force_unicode -> force_text
-try:
-    from django.utils.encoding import smart_text
-except ImportError:
-    from django.utils.encoding import smart_unicode as smart_text
-try:
-    from django.utils.encoding import force_text
-except ImportError:
-    from django.utils.encoding import force_unicode as force_text
-
-
 # OrderedDict only available in Python 2.7.
 # This will always be the case in Django 1.7 and above, as these versions
 # no longer support Python 2.6.
 # For Django <= 1.6 and Python 2.6 fall back to OrderedDict.
 try:
     from collections import OrderedDict
-except:
+except ImportError:
     from django.utils.datastructures import SortedDict as OrderedDict
 
 
@@ -72,21 +60,13 @@ if 'guardian' in settings.INSTALLED_APPS:
         pass
 
 
-# cStringIO only if it's available, otherwise StringIO
-try:
-    import cStringIO.StringIO as StringIO
-except ImportError:
-    StringIO = six.StringIO
-
-BytesIO = six.BytesIO
-
-
 # urlparse compat import (Required because it changed in python 3.x)
 try:
     from urllib import parse as urlparse
 except ImportError:
     import urlparse
 
+
 # UserDict moves in Python 3
 try:
     from UserDict import UserDict
@@ -104,14 +84,6 @@ def get_model_name(model_cls):
         return model_cls._meta.module_name
 
 
-def get_concrete_model(model_cls):
-    try:
-        return model_cls._meta.concrete_model
-    except AttributeError:
-        # 1.3 does not include concrete model
-        return model_cls
-
-
 # View._allowed_methods only present from 1.5 onwards
 if django.VERSION >= (1, 5):
     from django.views.generic import View
diff --git a/rest_framework/exceptions.py b/rest_framework/exceptions.py
index 906de3b0..be41d08d 100644
--- a/rest_framework/exceptions.py
+++ b/rest_framework/exceptions.py
@@ -5,11 +5,11 @@ In addition Django's built in 403 and 404 exceptions are handled.
 (`django.http.Http404` and `django.core.exceptions.PermissionDenied`)
 """
 from __future__ import unicode_literals
+from django.utils.encoding import force_text
 
 from django.utils.translation import ugettext_lazy as _
 from django.utils.translation import ungettext_lazy
 from rest_framework import status
-from rest_framework.compat import force_text
 import math
 
 
diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index ca9c479f..37adbe16 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -5,11 +5,11 @@ from django.core.validators import RegexValidator
 from django.forms import ImageField as DjangoImageField
 from django.utils import six, timezone
 from django.utils.dateparse import parse_date, parse_datetime, parse_time
-from django.utils.encoding import is_protected_type
+from django.utils.encoding import is_protected_type, smart_text
 from django.utils.translation import ugettext_lazy as _
 from rest_framework import ISO_8601
 from rest_framework.compat import (
-    smart_text, EmailValidator, MinValueValidator, MaxValueValidator,
+    EmailValidator, MinValueValidator, MaxValueValidator,
     MinLengthValidator, MaxLengthValidator, URLValidator, OrderedDict
 )
 from rest_framework.exceptions import ValidationError
diff --git a/rest_framework/metadata.py b/rest_framework/metadata.py
index de829d00..3b058fab 100644
--- a/rest_framework/metadata.py
+++ b/rest_framework/metadata.py
@@ -1,17 +1,18 @@
 """
-The metadata API is used to allow cusomization of how `OPTIONS` requests
+The metadata API is used to allow customization of how `OPTIONS` requests
 are handled. We currently provide a single default implementation that returns
 some fairly ad-hoc information about the view.
 
-Future implementations might use JSON schema or other definations in order
+Future implementations might use JSON schema or other definitions in order
 to return this information in a more standardized way.
 """
 from __future__ import unicode_literals
 
 from django.core.exceptions import PermissionDenied
 from django.http import Http404
+from django.utils.encoding import force_text
 from rest_framework import exceptions, serializers
-from rest_framework.compat import force_text, OrderedDict
+from rest_framework.compat import OrderedDict
 from rest_framework.request import clone_request
 from rest_framework.utils.field_mapping import ClassLookupDict
 
diff --git a/rest_framework/parsers.py b/rest_framework/parsers.py
index d229abec..7b948362 100644
--- a/rest_framework/parsers.py
+++ b/rest_framework/parsers.py
@@ -12,7 +12,8 @@ from django.http import QueryDict
 from django.http.multipartparser import MultiPartParser as DjangoMultiPartParser
 from django.http.multipartparser import MultiPartParserError, parse_header, ChunkIter
 from django.utils import six
-from rest_framework.compat import etree, yaml, force_text, urlparse
+from django.utils.encoding import force_text
+from rest_framework.compat import etree, yaml, urlparse
 from rest_framework.exceptions import ParseError
 from rest_framework import renderers
 import json
diff --git a/rest_framework/relations.py b/rest_framework/relations.py
index d1ea497a..b889acc8 100644
--- a/rest_framework/relations.py
+++ b/rest_framework/relations.py
@@ -1,4 +1,5 @@
-from rest_framework.compat import smart_text, urlparse
+from django.utils.encoding import smart_text
+from rest_framework.compat import urlparse
 from rest_framework.fields import get_attribute, empty, Field
 from rest_framework.reverse import reverse
 from rest_framework.utils import html
diff --git a/rest_framework/renderers.py b/rest_framework/renderers.py
index e87d16d0..ee34ffae 100644
--- a/rest_framework/renderers.py
+++ b/rest_framework/renderers.py
@@ -16,11 +16,11 @@ from django.http.multipartparser import parse_header
 from django.template import Context, RequestContext, loader, Template
 from django.test.client import encode_multipart
 from django.utils import six
+from django.utils.encoding import smart_text
 from django.utils.xmlutils import SimplerXMLGenerator
+from django.utils.six.moves import StringIO
 from rest_framework import exceptions, serializers, status, VERSION
-from rest_framework.compat import (
-    SHORT_SEPARATORS, LONG_SEPARATORS, StringIO, smart_text, yaml
-)
+from rest_framework.compat import SHORT_SEPARATORS, LONG_SEPARATORS, yaml
 from rest_framework.exceptions import ParseError
 from rest_framework.settings import api_settings
 from rest_framework.request import is_form_media_type, override_method
diff --git a/rest_framework/request.py b/rest_framework/request.py
index d7e74674..20e049ed 100644
--- a/rest_framework/request.py
+++ b/rest_framework/request.py
@@ -14,9 +14,9 @@ from django.http import QueryDict
 from django.http.multipartparser import parse_header
 from django.utils.datastructures import MultiValueDict
 from django.utils.datastructures import MergeDict as DjangoMergeDict
+from django.utils.six import BytesIO
 from rest_framework import HTTP_HEADER_ENCODING
 from rest_framework import exceptions
-from rest_framework.compat import BytesIO
 from rest_framework.settings import api_settings
 import warnings
 
diff --git a/rest_framework/templatetags/rest_framework.py b/rest_framework/templatetags/rest_framework.py
index f1825a24..f8686439 100644
--- a/rest_framework/templatetags/rest_framework.py
+++ b/rest_framework/templatetags/rest_framework.py
@@ -3,11 +3,11 @@ from django import template
 from django.core.urlresolvers import reverse, NoReverseMatch
 from django.http import QueryDict
 from django.utils import six
-from django.utils.encoding import iri_to_uri
+from django.utils.encoding import iri_to_uri, force_text
 from django.utils.html import escape
 from django.utils.safestring import SafeData, mark_safe
 from django.utils.html import smart_urlquote
-from rest_framework.compat import urlparse, force_text
+from rest_framework.compat import urlparse
 from rest_framework.renderers import HTMLFormRenderer
 import re
 
diff --git a/rest_framework/utils/encoders.py b/rest_framework/utils/encoders.py
index 4d6bb3a3..adc83e57 100644
--- a/rest_framework/utils/encoders.py
+++ b/rest_framework/utils/encoders.py
@@ -4,8 +4,9 @@ Helper classes for parsers.
 from __future__ import unicode_literals
 from django.db.models.query import QuerySet
 from django.utils import six, timezone
+from django.utils.encoding import force_text
 from django.utils.functional import Promise
-from rest_framework.compat import force_text, OrderedDict
+from rest_framework.compat import OrderedDict
 import datetime
 import decimal
 import types
diff --git a/rest_framework/utils/representation.py b/rest_framework/utils/representation.py
index 2a7c4675..3f17a8b9 100644
--- a/rest_framework/utils/representation.py
+++ b/rest_framework/utils/representation.py
@@ -3,8 +3,8 @@ Helper functions for creating user-friendly representations
 of serializer classes and serializer fields.
 """
 from django.db import models
+from django.utils.encoding import force_text
 from django.utils.functional import Promise
-from rest_framework.compat import force_text
 import re
 
 
diff --git a/rest_framework/views.py b/rest_framework/views.py
index 292431c8..bc870417 100644
--- a/rest_framework/views.py
+++ b/rest_framework/views.py
@@ -5,9 +5,10 @@ from __future__ import unicode_literals
 
 from django.core.exceptions import PermissionDenied
 from django.http import Http404
+from django.utils.encoding import smart_text
 from django.views.decorators.csrf import csrf_exempt
 from rest_framework import status, exceptions
-from rest_framework.compat import smart_text, HttpResponseBase, View
+from rest_framework.compat import HttpResponseBase, View
 from rest_framework.request import Request
 from rest_framework.response import Response
 from rest_framework.settings import api_settings
diff --git a/tests/test_description.py b/tests/test_description.py
index 6cd871ed..78ce2350 100644
--- a/tests/test_description.py
+++ b/tests/test_description.py
@@ -2,8 +2,8 @@
 
 from __future__ import unicode_literals
 from django.test import TestCase
-from django.utils.encoding import python_2_unicode_compatible
-from rest_framework.compat import apply_markdown, smart_text
+from django.utils.encoding import python_2_unicode_compatible, smart_text
+from rest_framework.compat import apply_markdown
 from rest_framework.views import APIView
 from .description import ViewWithNonASCIICharactersInDocstring
 from .description import UTF8_TEST_DOCSTRING
diff --git a/tests/test_parsers.py b/tests/test_parsers.py
index 88eccef3..d28d8bd4 100644
--- a/tests/test_parsers.py
+++ b/tests/test_parsers.py
@@ -5,8 +5,8 @@ from django import forms
 from django.core.files.uploadhandler import MemoryFileUploadHandler
 from django.test import TestCase
 from django.utils import unittest
+from django.utils.six.moves import StringIO
 from rest_framework.compat import etree
-from rest_framework.compat import StringIO
 from rest_framework.exceptions import ParseError
 from rest_framework.parsers import FormParser, FileUploadParser
 from rest_framework.parsers import XMLParser
diff --git a/tests/test_renderers.py b/tests/test_renderers.py
index 416d7f22..22eb5459 100644
--- a/tests/test_renderers.py
+++ b/tests/test_renderers.py
@@ -7,9 +7,11 @@ from django.core.cache import cache
 from django.db import models
 from django.test import TestCase
 from django.utils import six, unittest
+from django.utils.six import BytesIO
+from django.utils.six.moves import StringIO
 from django.utils.translation import ugettext_lazy as _
 from rest_framework import status, permissions
-from rest_framework.compat import yaml, etree, StringIO, BytesIO
+from rest_framework.compat import yaml, etree
 from rest_framework.response import Response
 from rest_framework.views import APIView
 from rest_framework.renderers import BaseRenderer, JSONRenderer, YAMLRenderer, \