Consistent imports for parse_qsl function, avoiding the `PendingDeprecationWarning` under Python 2.6 and later

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14297 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/cache/__init__.py

@@ -16,8 +16,15 @@ See docs/cache.txt for information on the public API.
 """
 
 try:
-    from urlparse import parse_qsl
+    # The mod_python version is more efficient, so try importing it first.
+    from mod_python.util import parse_qsl
 except ImportError:
+    try:
+        # Python 2.6 and greater
+        from urlparse import parse_qsl
+    except ImportError:
+        # Python 2.5, 2.4.  Works on Python 2.6 but raises
+        # PendingDeprecationWarning
         from cgi import parse_qsl
 
 from django.conf import settings

django/http/__init__.py

@@ -10,6 +10,12 @@ try:
     # The mod_python version is more efficient, so try importing it first.
     from mod_python.util import parse_qsl
 except ImportError:
+    try:
+        # Python 2.6 and greater
+        from urlparse import parse_qsl
+    except ImportError:
+        # Python 2.5, 2.4.  Works on Python 2.6 but raises
+        # PendingDeprecationWarning
         from cgi import parse_qsl
 
 from django.utils.datastructures import MultiValueDict, ImmutableList