Deprecated SortedDict (replaced with collections.OrderedDict)

Thanks Loic Bistuer for the review.

django/forms/forms.py

@@ -4,6 +4,7 @@ Form classes
 
 from __future__ import unicode_literals
 
+from collections import OrderedDict
 import copy
 import warnings
 
@@ -11,7 +12,6 @@ from django.core.exceptions import ValidationError
 from django.forms.fields import Field, FileField
 from django.forms.util import flatatt, ErrorDict, ErrorList
 from django.forms.widgets import Media, media_property, TextInput, Textarea
-from django.utils.datastructures import SortedDict
 from django.utils.html import conditional_escape, format_html
 from django.utils.encoding import smart_text, force_text, python_2_unicode_compatible
 from django.utils.safestring import mark_safe
@@ -55,7 +55,7 @@ def get_declared_fields(bases, attrs, with_base_fields=True):
             if hasattr(base, 'declared_fields'):
                 fields = list(six.iteritems(base.declared_fields)) + fields
 
-    return SortedDict(fields)
+    return OrderedDict(fields)
 
 class DeclarativeFieldsMetaclass(type):
     """

django/forms/models.py

@@ -5,6 +5,7 @@ and database field objects.
 
 from __future__ import unicode_literals
 
+from collections import OrderedDict
 import warnings
 
 from django.core.exceptions import ValidationError, NON_FIELD_ERRORS, FieldError
@@ -15,7 +16,6 @@ from django.forms.util import ErrorList
 from django.forms.widgets import (SelectMultiple, HiddenInput,
     MultipleHiddenInput, media_property, CheckboxSelectMultiple)
 from django.utils.encoding import smart_text, force_text
-from django.utils.datastructures import SortedDict
 from django.utils import six
 from django.utils.text import get_text_list, capfirst
 from django.utils.translation import ugettext_lazy as _, ugettext, string_concat
@@ -142,7 +142,7 @@ def fields_for_model(model, fields=None, exclude=None, widgets=None,
                      formfield_callback=None, localized_fields=None,
                      labels=None, help_texts=None, error_messages=None):
     """
-    Returns a ``SortedDict`` containing form fields for the given model.
+    Returns a ``OrderedDict`` containing form fields for the given model.
 
     ``fields`` is an optional list of field names. If provided, only the named
     fields will be included in the returned fields.
@@ -199,9 +199,9 @@ def fields_for_model(model, fields=None, exclude=None, widgets=None,
             field_list.append((f.name, formfield))
         else:
             ignored.append(f.name)
-    field_dict = SortedDict(field_list)
+    field_dict = OrderedDict(field_list)
     if fields:
-        field_dict = SortedDict(
+        field_dict = OrderedDict(
             [(f, field_dict.get(f)) for f in fields
                 if ((not exclude) or (exclude and f not in exclude)) and (f not in ignored)]
         )