fixed pickle serializer to work in dynamo session store.

dynamodb_sessions/backends/dynamodb.py

@@ -41,6 +41,7 @@
 
 # We'll find some better way to do this.
 _DYNAMODB_CONN = None
+_DYNAMODB_TABLE = None
 
 logger = logging.getLogger(__name__)
 dynamo_kwargs = dict(
@@ -76,20 +77,25 @@ def dynamodb_connection_factory(low_level=False):
     return _DYNAMODB_CONN
 
 
+def dynamodb_table():
+    global _DYNAMODB_TABLE
+
+    if not _DYNAMODB_TABLE:
+        _DYNAMODB_TABLE = dynamodb_connection_factory().Table(TABLE_NAME)
+    return _DYNAMODB_TABLE
+
+
 class SessionStore(SessionBase):
     """
     Implements DynamoDB session store.
     """
 
     def __init__(self, session_key=None):
         super(SessionStore, self).__init__(session_key)
-        self._table = None
 
     @property
     def table(self):
-        if self._table is None:
-            self._table = dynamodb_connection_factory().Table(TABLE_NAME)
-        return self._table
+        return dynamodb_table()
 
     def load(self):
         """

dynamodb_sessions/tests.py

@@ -380,7 +380,6 @@ def table(self, force_connection=False):
             self._table = dynamodb_connection_factory().Table(TABLE_NAME)
         return self._table
 
-    @skip("until clear_expired method if implemented")
     @override_settings(
         SESSION_ENGINE="dynamodb_sessions.backends.dynamodb",
         SESSION_COOKIE_AGE=0,
@@ -409,6 +408,14 @@ def test_clearsessions_command(self):
         # ... and one is deleted.
         self.assertEqual(1, self.table(force_connection=True).item_count)
 
+    def test_pickle_dump(self):
+        import pickle as pypickle
+        import cPickle as cpickle
+
+        pypickle.dumps(self.session, 2)
+
+        cpickle.dumps(self.session, 2)
+
 
 class CachedDynamoDBTestCase(SessionTestsMixin, TestCase):
     backend = CachedDynamoDBSession