tools (common/data_objects): fixed Identity

src/tools/common/data_objects.py

@@ -294,9 +294,14 @@ class Identity(object):
         self.jid_str = jid_str
         self.data = data if data is not None else {}
 
-    @property
-    def nick(self):
-        return self.data.get(u'nick')
+    def __getitem__(self, key):
+        return self.data[key]
+
+    def __getattr__(self, key):
+        try:
+            return self.data[key]
+        except KeyError:
+            raise AttributeError(key)
 
 
 class Identities(object):