Update json imports

rest_framework/fields.py

@@ -5,7 +5,6 @@ import copy
 import datetime
 import decimal
 import inspect
-import json
 import re
 import uuid
 from collections import OrderedDict
@@ -37,7 +36,7 @@ from rest_framework.compat import (
 )
 from rest_framework.exceptions import ErrorDetail, ValidationError
 from rest_framework.settings import api_settings
-from rest_framework.utils import html, humanize_datetime, representation
+from rest_framework.utils import html, humanize_datetime, json, representation
 
 
 class empty:

rest_framework/parsers.py

@@ -7,7 +7,6 @@ on the request, such as form content or json encoded data.
 from __future__ import unicode_literals
 
 import codecs
-import json
 
 from django.conf import settings
 from django.core.files.uploadhandler import StopFutureHandlers
@@ -23,6 +22,7 @@ from django.utils.six.moves.urllib import parse as urlparse
 
 from rest_framework import renderers
 from rest_framework.exceptions import ParseError
+from rest_framework.utils import json
 
 
 class DataAndFiles(object):

rest_framework/renderers.py

@@ -9,7 +9,6 @@ REST framework also provides an HTML renderer that renders the browsable API.
 from __future__ import unicode_literals
 
 import base64
-import json
 from collections import OrderedDict
 
 from django import forms
@@ -30,7 +29,7 @@ from rest_framework.compat import (
 from rest_framework.exceptions import ParseError
 from rest_framework.request import is_form_media_type, override_method
 from rest_framework.settings import api_settings
-from rest_framework.utils import encoders
+from rest_framework.utils import encoders, json
 from rest_framework.utils.breadcrumbs import get_breadcrumbs
 from rest_framework.utils.field_mapping import ClassLookupDict
 

rest_framework/utils/serializer_helpers.py

 from __future__ import unicode_literals
 
 import collections
-import json
 from collections import OrderedDict
 
 from django.utils.encoding import force_text
 
 from rest_framework.compat import unicode_to_repr
+from rest_framework.utils import json
 
 
 class ReturnDict(OrderedDict):

tests/test_renderers.py

 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-import json
 import re
 from collections import MutableMapping, OrderedDict
 
@@ -24,6 +23,7 @@ from rest_framework.request import Request
 from rest_framework.response import Response
 from rest_framework.settings import api_settings
 from rest_framework.test import APIRequestFactory
+from rest_framework.utils import json
 from rest_framework.views import APIView
 
 DUMMYSTATUS = status.HTTP_200_OK

tests/test_routers.py

 from __future__ import unicode_literals
 
-import json
 from collections import namedtuple
 
 import pytest
@@ -15,6 +14,7 @@ from rest_framework.decorators import detail_route, list_route
 from rest_framework.response import Response
 from rest_framework.routers import DefaultRouter, SimpleRouter
 from rest_framework.test import APIRequestFactory
+from rest_framework.utils import json
 
 factory = APIRequestFactory()