From 6c48edae769dee8c6b691cea525f85f40760d9d0 Mon Sep 17 00:00:00 2001
From: Jon Dufresne <jon.dufresne@gmail.com>
Date: Tue, 23 Feb 2016 15:39:20 -0800
Subject: [1.8.x] Fixed #26267 -- Fixed BoundField to reallow slices of
 subwidgets.

Backport of b41268135995cef46d40e550f9301fab20cf330d from master
---
 django/forms/forms.py                 |  2 +-
 docs/releases/1.8.10.txt              |  2 ++
 docs/spelling_wordlist                |  1 +
 tests/forms_tests/tests/test_forms.py | 14 ++++++++++++++
 4 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/django/forms/forms.py b/django/forms/forms.py
index 80ba830684..3f9d7898c2 100644
--- a/django/forms/forms.py
+++ b/django/forms/forms.py
@@ -554,7 +554,7 @@ class BoundField(object):
     def __getitem__(self, idx):
         # Prevent unnecessary reevaluation when accessing BoundField's attrs
         # from templates.
-        if not isinstance(idx, six.integer_types):
+        if not isinstance(idx, six.integer_types + (slice,)):
             raise TypeError
         return list(self.__iter__())[idx]
 
diff --git a/docs/releases/1.8.10.txt b/docs/releases/1.8.10.txt
index b63ae2abdc..c9fbd0470d 100644
--- a/docs/releases/1.8.10.txt
+++ b/docs/releases/1.8.10.txt
@@ -24,3 +24,5 @@ Bugfixes
 
 * Reallowed dashes in top-level domain names of URLs checked by
   ``URLValidator`` to fix a regression in Django 1.8 (:ticket:`26204`).
+
+* Fixed ``BoundField`` to reallow slices of subwidgets (:ticket:`26267`).
diff --git a/docs/spelling_wordlist b/docs/spelling_wordlist
index c46d6d6e67..0bbc5ec2a6 100644
--- a/docs/spelling_wordlist
+++ b/docs/spelling_wordlist
@@ -512,6 +512,7 @@ quoteless
 Radziej
 rc
 readded
+reallow
 reallowed
 rebase
 rebased
diff --git a/tests/forms_tests/tests/test_forms.py b/tests/forms_tests/tests/test_forms.py
index 7ab1f45da1..c252a17c5b 100644
--- a/tests/forms_tests/tests/test_forms.py
+++ b/tests/forms_tests/tests/test_forms.py
@@ -468,6 +468,20 @@ class FormsTestCase(TestCase):
         f = BeatleForm(auto_id=False)
         self.assertHTMLEqual('\n'.join(str(bf) for bf in f['name']), '<input type="text" name="name" />')
 
+    def test_boundfield_slice(self):
+        class BeatleForm(Form):
+            name = ChoiceField(
+                choices=[('john', 'John'), ('paul', 'Paul'), ('george', 'George'), ('ringo', 'Ringo')],
+                widget=RadioSelect,
+            )
+
+        f = BeatleForm()
+        bf = f['name']
+        self.assertEqual(
+            [str(item) for item in bf[1:]],
+            [str(bf[1]), str(bf[2]), str(bf[3])],
+        )
+
     def test_forms_with_multiple_choice(self):
         # MultipleChoiceField is a special case, as its data is required to be a list:
         class SongForm(Form):
-- 
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