Fixed #7718 -- Added a naive implementation of sorted() for Python 2.3 compatibility, and modified test cases to import the function when required.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7914 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/utils/datastructures.py

@@ -48,4 +48,11 @@
 ['one', 'second-two']
 >>> d.values() # Here the order of SortedDict values *is* what we are testing
 ['second-two', 'one']
-"""
+"""
+
+# Python 2.3 doesn't have sorted()
+try:
+    sorted
+except NameError:
+    from django.utils.itercompat import sorted
+