1 files changed, 29 insertions, 12 deletions
diff --git a/lib/sqlalchemy/dialects/postgresql/hstore.py b/lib/sqlalchemy/dialects/postgresql/hstore.py
index e555a1afd..d7368ff42 100644
--- a/lib/sqlalchemy/dialects/postgresql/hstore.py
+++ b/lib/sqlalchemy/dialects/postgresql/hstore.py
@@ -10,6 +10,7 @@ from .base import ARRAY, ischema_names
 from ... import types as sqltypes
 from ...sql import functions as sqlfunc
 from ...sql.operators import custom_op
+from ... import util
 
 __all__ = ('HSTORE', 'hstore')
 
@@ -96,14 +97,14 @@ def _serialize_hstore(val):
     def esc(s, position):
         if position == 'value' and s is None:
             return 'NULL'
-        elif isinstance(s, basestring):
+        elif isinstance(s, util.string_types):
             return '"%s"' % s.replace('"', r'\"')
         else:
             raise ValueError("%r in %s position is not a string." %
                              (s, position))
 
     return ', '.join('%s=>%s' % (esc(k, 'key'), esc(v, 'value'))
-                     for k, v in val.iteritems())
+                     for k, v in val.items())
 
 
 class HSTORE(sqltypes.Concatenable, sqltypes.TypeEngine):
@@ -260,19 +261,35 @@ class HSTORE(sqltypes.Concatenable, sqltypes.TypeEngine):
                 _adapt_expression(self, op, other_comparator)
 
     def bind_processor(self, dialect):
-        def process(value):
-            if isinstance(value, dict):
-                return _serialize_hstore(value)
-            else:
-                return value
+        if util.py2k:
+            encoding = dialect.encoding
+            def process(value):
+                if isinstance(value, dict):
+                    return _serialize_hstore(value).encode(encoding)
+                else:
+                    return value
+        else:
+            def process(value):
+                if isinstance(value, dict):
+                    return _serialize_hstore(value)
+                else:
+                    return value
         return process
 
     def result_processor(self, dialect, coltype):
-        def process(value):
-            if value is not None:
-                return _parse_hstore(value)
-            else:
-                return value
+        if util.py2k:
+            encoding = dialect.encoding
+            def process(value):
+                if value is not None:
+                    return _parse_hstore(value.decode(encoding))
+                else:
+                    return value
+        else:
+            def process(value):
+                if value is not None:
+                    return _parse_hstore(value)
+                else:
+                    return value
         return process