- RowProxy objects are now pickleable, i.e. the object returned

by result.fetchone(), result.fetchall() etc.
- the "named tuple" objects returned when iterating a
Query() are now pickleable.

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/sqlalchemy/util.py b/lib/sqlalchemy/util.py
index 67990a202..8f0b5583d 100644
--- a/lib/sqlalchemy/util.py
+++ b/lib/sqlalchemy/util.py
@@ -635,6 +635,23 @@ def monkeypatch_proxied_specials(into_cls, from_cls, skip=None, only=None,
             pass
         setattr(into_cls, method, env[method])
 
+class NamedTuple(tuple):
+    """tuple() subclass that adds labeled names.
+    
+    Is also pickleable.
+    
+    """
+
+    def __new__(cls, labels, vals):
+        vals = list(vals)
+        t = tuple.__new__(cls, vals)
+        t.__dict__ = dict(zip(labels, vals))
+        t._labels = labels
+        return t
+
+    def keys(self):
+        return self._labels
+
 
 class OrderedProperties(object):
     """An object that maintains the order in which attributes are set upon it.