Remove deprecated code

rest_framework/compat.py

@@ -494,11 +494,14 @@ try:
     if provider_version in ('0.2.3', '0.2.4'):
         # 0.2.3 and 0.2.4 are supported version that do not support
         # timezone aware datetimes
-        from datetime.datetime import now as provider_now
+        import datetime
+        provider_now = datetime.datetime.now
     else:
         # Any other supported version does use timezone aware datetimes
         from django.utils.timezone import now as provider_now
 except ImportError:
+    import traceback
+    traceback.print_exc()
     oauth2_provider = None
     oauth2_provider_models = None
     oauth2_provider_forms = None

rest_framework/fields.py

@@ -224,13 +224,6 @@ class WritableField(Field):
                  validators=[], error_messages=None, widget=None,
                  default=None, blank=None):
 
-        # 'blank' is to be deprecated in favor of 'required'
-        if blank is not None:
-            warnings.warn('The `blank` keyword argument is deprecated. '
-                          'Use the `required` keyword argument instead.',
-                          DeprecationWarning, stacklevel=2)
-            required = not(blank)
-
         super(WritableField, self).__init__(source=source, label=label, help_text=help_text)
 
         self.read_only = read_only

rest_framework/permissions.py

@@ -2,13 +2,10 @@
 Provides a set of pluggable permission policies.
 """
 from __future__ import unicode_literals
-import inspect
-import warnings
+from rest_framework.compat import oauth2_provider_scope, oauth2_constants
 
 SAFE_METHODS = ['GET', 'HEAD', 'OPTIONS']
 
-from rest_framework.compat import oauth2_provider_scope, oauth2_constants
-
 
 class BasePermission(object):
     """
@@ -25,13 +22,6 @@ class BasePermission(object):
         """
         Return `True` if permission is granted, `False` otherwise.
         """
-        if len(inspect.getargspec(self.has_permission).args) == 4:
-            warnings.warn(
-                'The `obj` argument in `has_permission` is deprecated. '
-                'Use `has_object_permission()` instead for object permissions.',
-                DeprecationWarning, stacklevel=2
-            )
-            return self.has_permission(request, view, obj)
         return True
 
 

rest_framework/relations.py

@@ -40,14 +40,6 @@ class RelatedField(WritableField):
     many = False
 
     def __init__(self, *args, **kwargs):
-
-        # 'null' is to be deprecated in favor of 'required'
-        if 'null' in kwargs:
-            warnings.warn('The `null` keyword argument is deprecated. '
-                          'Use the `required` keyword argument instead.',
-                          DeprecationWarning, stacklevel=2)
-            kwargs['required'] = not kwargs.pop('null')
-
         queryset = kwargs.pop('queryset', None)
         self.many = kwargs.pop('many', self.many)
         if self.many:
@@ -424,14 +416,11 @@ class HyperlinkedRelatedField(RelatedField):
         request = self.context.get('request', None)
         format = self.format or self.context.get('format', None)
 
-        if request is None:
-            msg = (
-                "Using `HyperlinkedRelatedField` without including the request "
-                "in the serializer context is deprecated. "
-                "Add `context={'request': request}` when instantiating "
-                "the serializer."
-            )
-            warnings.warn(msg, DeprecationWarning, stacklevel=4)
+        assert request is not None, (
+            "`HyperlinkedRelatedField` requires the request in the serializer "
+            "context. Add `context={'request': request}` when instantiating "
+            "the serializer."
+        )
 
         # If the object has not yet been saved then we cannot hyperlink to it.
         if getattr(obj, 'pk', None) is None:
@@ -530,11 +519,11 @@ class HyperlinkedIdentityField(Field):
         format = self.context.get('format', None)
         view_name = self.view_name
 
-        if request is None:
-            warnings.warn("Using `HyperlinkedIdentityField` without including the "
-                          "request in the serializer context is deprecated. "
-                          "Add `context={'request': request}` when instantiating the serializer.",
-                          DeprecationWarning, stacklevel=4)
+        assert request is not None, (
+            "`HyperlinkedIdentityField` requires the request in the serializer"
+            " context. Add `context={'request': request}` when instantiating "
+            "the serializer."
+        )
 
         # By default use whatever format is given for the current context
         # unless the target is a different type to the source.
@@ -593,41 +582,3 @@ class HyperlinkedIdentityField(Field):
                 pass
 
         raise NoReverseMatch()
-
-
-### Old-style many classes for backwards compat
-
-class ManyRelatedField(RelatedField):
-    def __init__(self, *args, **kwargs):
-        warnings.warn('`ManyRelatedField()` is deprecated. '
-                      'Use `RelatedField(many=True)` instead.',
-                       DeprecationWarning, stacklevel=2)
-        kwargs['many'] = True
-        super(ManyRelatedField, self).__init__(*args, **kwargs)
-
-
-class ManyPrimaryKeyRelatedField(PrimaryKeyRelatedField):
-    def __init__(self, *args, **kwargs):
-        warnings.warn('`ManyPrimaryKeyRelatedField()` is deprecated. '
-                      'Use `PrimaryKeyRelatedField(many=True)` instead.',
-                       DeprecationWarning, stacklevel=2)
-        kwargs['many'] = True
-        super(ManyPrimaryKeyRelatedField, self).__init__(*args, **kwargs)
-
-
-class ManySlugRelatedField(SlugRelatedField):
-    def __init__(self, *args, **kwargs):
-        warnings.warn('`ManySlugRelatedField()` is deprecated. '
-                      'Use `SlugRelatedField(many=True)` instead.',
-                       DeprecationWarning, stacklevel=2)
-        kwargs['many'] = True
-        super(ManySlugRelatedField, self).__init__(*args, **kwargs)
-
-
-class ManyHyperlinkedRelatedField(HyperlinkedRelatedField):
-    def __init__(self, *args, **kwargs):
-        warnings.warn('`ManyHyperlinkedRelatedField()` is deprecated. '
-                      'Use `HyperlinkedRelatedField(many=True)` instead.',
-                       DeprecationWarning, stacklevel=2)
-        kwargs['many'] = True
-        super(ManyHyperlinkedRelatedField, self).__init__(*args, **kwargs)

rest_framework/serializers.py

@@ -15,7 +15,6 @@ import copy
 import datetime
 import types
 from decimal import Decimal
-from django.core.paginator import Page
 from django.db import models
 from django.forms import widgets
 from django.utils.datastructures import SortedDict
@@ -141,7 +140,7 @@ class BaseSerializer(WritableField):
     _dict_class = SortedDictWithMetadata
 
     def __init__(self, instance=None, data=None, files=None,
-                 context=None, partial=False, many=None,
+                 context=None, partial=False, many=False,
                  allow_add_remove=False, **kwargs):
         super(BaseSerializer, self).__init__(**kwargs)
         self.opts = self._options_class(self.Meta)
@@ -348,12 +347,7 @@ class BaseSerializer(WritableField):
         if value is None:
             return None
 
-        if self.many is not None:
-            many = self.many
-        else:
-            many = hasattr(value, '__iter__') and not isinstance(value, (Page, dict, six.text_type))
-
-        if many:
+        if self.many:
             return [self.to_native(item) for item in value]
         return self.to_native(value)
 
@@ -424,16 +418,7 @@ class BaseSerializer(WritableField):
         if self._errors is None:
             data, files = self.init_data, self.init_files
 
-            if self.many is not None:
-                many = self.many
-            else:
-                many = hasattr(data, '__iter__') and not isinstance(data, (Page, dict, six.text_type))
-                if many:
-                    warnings.warn('Implict list/queryset serialization is deprecated. '
-                                  'Use the `many=True` flag when instantiating the serializer.',
-                                  DeprecationWarning, stacklevel=3)
-
-            if many:
+            if self.many:
                 ret = []
                 errors = []
                 update = self.object is not None
@@ -486,16 +471,7 @@ class BaseSerializer(WritableField):
         if self._data is None:
             obj = self.object
 
-            if self.many is not None:
-                many = self.many
-            else:
-                many = hasattr(obj, '__iter__') and not isinstance(obj, (Page, dict))
-                if many:
-                    warnings.warn('Implict list/queryset serialization is deprecated. '
-                                  'Use the `many=True` flag when instantiating the serializer.',
-                                  DeprecationWarning, stacklevel=2)
-
-            if many:
+            if self.many:
                 self._data = [self.to_native(item) for item in obj]
             else:
                 self._data = self.to_native(obj)

rest_framework/tests/test_serializer.py

@@ -1268,7 +1268,7 @@ class NestedSerializerContextTests(TestCase):
                 model = Album
                 fields = ("photo_set", "callable")
 
-            photo_set = PhotoSerializer(source="photo_set")
+            photo_set = PhotoSerializer(source="photo_set", many=True)
             callable = serializers.SerializerMethodField("_callable")
 
             def _callable(self, instance):
@@ -1280,7 +1280,7 @@ class NestedSerializerContextTests(TestCase):
             albums = None
 
         class AlbumCollectionSerializer(serializers.Serializer):
-            albums = AlbumSerializer(source="albums")
+            albums = AlbumSerializer(source="albums", many=True)
 
         album1 = Album.objects.create(title="album 1")
         album2 = Album.objects.create(title="album 2")