From 3abb1900bbcafc78a7ec0b61a9f2e3134951d0ab Mon Sep 17 00:00:00 2001
From: Chris McDonough <chrism@plope.com>
Date: Mon, 16 Aug 2010 20:30:52 +0000
Subject: [PATCH] add __iter__ method to schemas

---
 colander/__init__.py | 4 ++++
 colander/tests.py    | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/colander/__init__.py b/colander/__init__.py
index c420e99..2cadd6b 100644
--- a/colander/__init__.py
+++ b/colander/__init__.py
@@ -1179,6 +1179,10 @@ class SchemaNode(object):
             raise TypeError('Unknown keyword arguments: %s' % repr(kw))
         self.children = list(children)
 
+    def __iter__(self):
+        """ Iterate over the children nodes of this schema node """
+        return iter(self.children)
+
     def __repr__(self):
         return '<%s.%s object at %d (named %s)>' % (
             self.__module__,
diff --git a/colander/tests.py b/colander/tests.py
index 562bf80..b5c8323 100644
--- a/colander/tests.py
+++ b/colander/tests.py
@@ -1395,6 +1395,12 @@ class TestSchemaNode(unittest.TestCase):
         node = self._makeOne(None)
         self.assertRaises(KeyError, node.__getitem__, 'another')
 
+    def test___iter__(self):
+        node = self._makeOne(None)
+        node.children = ['a', 'b', 'c']
+        it = node.__iter__()
+        self.assertEqual(list(it), ['a', 'b', 'c'])
+
     def test_clone(self):
         inner_typ = DummyType()
         outer_typ = DummyType()