caches: use LRUDict inside our lru helper so we can import it later on when required.

rhodecode/lib/memory_lru_debug.py

@@ -36,13 +36,32 @@ eg difference in speed:
 """
 import logging
 
-from infrae.cache.beakerext.lru import LRUDict
+from repoze.lru import LRUCache
 from beaker.container import MemoryNamespaceManager, AbstractDictionaryNSManager
 from rhodecode.lib.utils2 import safe_str
 
 log = logging.getLogger(__name__)
 
 
+class LRUDict(LRUCache):
+    """ Wrapper to provide partial dict access
+    """
+    def __setitem__(self, key, value):
+        return self.put(key, value)
+
+    def __getitem__(self, key):
+        return self.get(key)
+
+    def __contains__(self, key):
+        return bool(self.get(key))
+
+    def __delitem__(self, key):
+        del self.data[key]
+
+    def keys(self):
+        return self.data.keys()
+
+
 class LRUDictDebug(LRUDict):
     """
     Wrapper to provide some debug options