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diff --git a/catalog/pub/redisco/containers.py b/catalog/pub/redisco/containers.py
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+#  Copyright (c) 2010 Tim Medina
+#
+#  Permission is hereby granted, free of charge, to any person
+#  obtaining a copy of this software and associated documentation
+#  files (the "Software"), to deal in the Software without
+#  restriction, including without limitation the rights to use,
+#  copy, modify, merge, publish, distribute, sublicense, and/or sell
+#  copies of the Software, and to permit persons to whom the
+#  Software is furnished to do so, subject to the following
+#  conditions:
+#
+#  The above copyright notice and this permission notice shall be
+#  included in all copies or substantial portions of the Software.
+#
+#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+#  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+#  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+#  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+#  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+#  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+#  OTHER DEALINGS IN THE SOFTWARE.
+#
+#  The original code link is https://github.com/iamteem/redisco/tree/master/redisco/containers.py
+
+"""
+This module contains the container classes to create objects
+that persist directly in a Redis server.
+"""
+
+import collections
+from functools import partial
+
+
+class Container(object):
+    """Create a container object saved in Redis.
+
+    Arguments:
+        key -- the Redis key this container is stored at
+        db  -- the Redis client object. Default: None
+
+    When ``db`` is not set, the gets the default connection from
+    ``redisco.connection`` module.
+    """
+
+    def __init__(self, key, db=None, pipeline=None):
+        self._db = db
+        self.key = key
+        self.pipeline = pipeline
+
+    def clear(self):
+        """Remove container from Redis database."""
+        del self.db[self.key]
+
+    def __getattribute__(self, att):
+        if att in object.__getattribute__(self, 'DELEGATEABLE_METHODS'):
+            return partial(getattr(object.__getattribute__(self, 'db'), att), self.key)
+        else:
+            return object.__getattribute__(self, att)
+
+    @property
+    def db(self):
+        if self.pipeline:
+            return self.pipeline
+        if self._db:
+            return self._db
+        if hasattr(self, 'db_cache') and self.db_cache:
+            return self.db_cache
+        else:
+            from . import connection
+            self.db_cache = connection
+            return self.db_cache
+
+    DELEGATEABLE_METHODS = ()
+
+
+class Hash(Container, collections.MutableMapping):
+
+    def __getitem__(self, att):
+        return self.hget(att)
+
+    def __setitem__(self, att, val):
+        self.hset(att, val)
+
+    def __delitem__(self, att):
+        self.hdel(att)
+
+    def __len__(self):
+        return self.hlen()
+
+    def __iter__(self):
+        return self.hgetall().__iter__()
+
+    def __contains__(self, att):
+        return self.hexists(att)
+
+    def __repr__(self):
+        return "<%s '%s' %s>" % (self.__class__.__name__, self.key, self.hgetall())
+
+    def keys(self):
+        return self.hkeys()
+
+    def values(self):
+        return self.hvals()
+
+    def _get_dict(self):
+        return self.hgetall()
+
+    def _set_dict(self, new_dict):
+        self.clear()
+        self.update(new_dict)
+
+    dict = property(_get_dict, _set_dict)
+
+    DELEGATEABLE_METHODS = ('hlen', 'hset', 'hdel', 'hkeys', 'hgetall', 'hvals',
+                            'hget', 'hexists', 'hincrby', 'hmget', 'hmset')