[py3] Replaced basestring by six.string_types.

3 files changed, 6 insertions, 3 deletions

diff --git a/django/core/serializers/base.py b/django/core/serializers/base.py
index 04053c1f8f..19886f7d53 100644
--- a/django/core/serializers/base.py
+++ b/django/core/serializers/base.py
@@ -6,6 +6,7 @@ from io import BytesIO
 
 from django.db import models
 from django.utils.encoding import smart_unicode
+from django.utils import six
 
 class SerializerDoesNotExist(KeyError):
     """The requested serializer was not found."""
@@ -123,7 +124,7 @@ class Deserializer(object):
         Init this serializer given a stream or a string
         """
         self.options = options
-        if isinstance(stream_or_string, basestring):
+        if isinstance(stream_or_string, six.string_types):
             self.stream = BytesIO(stream_or_string)
         else:
             self.stream = stream_or_string
diff --git a/django/core/serializers/json.py b/django/core/serializers/json.py
index 941b9e0ba8..8b56d0e7b8 100644
--- a/django/core/serializers/json.py
+++ b/django/core/serializers/json.py
@@ -13,6 +13,7 @@ from django.core.serializers.base import DeserializationError
 from django.core.serializers.python import Serializer as PythonSerializer
 from django.core.serializers.python import Deserializer as PythonDeserializer
 from django.utils.encoding import smart_str
+from django.utils import six
 from django.utils.timezone import is_aware
 
 class Serializer(PythonSerializer):
@@ -63,7 +64,7 @@ def Deserializer(stream_or_string, **options):
     if isinstance(stream_or_string, bytes):
         stream_or_string = stream_or_string.decode('utf-8')
     try:
-        if isinstance(stream_or_string, basestring):
+        if isinstance(stream_or_string, six.string_types):
             objects = json.loads(stream_or_string)
         else:
             objects = json.load(stream_or_string)
diff --git a/django/core/serializers/pyyaml.py b/django/core/serializers/pyyaml.py
index 73e92d557f..ac0e6cf82d 100644
--- a/django/core/serializers/pyyaml.py
+++ b/django/core/serializers/pyyaml.py
@@ -13,6 +13,7 @@ from django.core.serializers.base import DeserializationError
 from django.core.serializers.python import Serializer as PythonSerializer
 from django.core.serializers.python import Deserializer as PythonDeserializer
 from django.utils.encoding import smart_str
+from django.utils import six
 
 
 class DjangoSafeDumper(yaml.SafeDumper):
@@ -53,7 +54,7 @@ def Deserializer(stream_or_string, **options):
     """
     if isinstance(stream_or_string, bytes):
         stream_or_string = stream_or_string.decode('utf-8')
-    if isinstance(stream_or_string, basestring):
+    if isinstance(stream_or_string, six.string_types):
         stream = StringIO(stream_or_string)
     else:
         stream = stream_or_string