Added util package, which provides a general get()

groundwork/util.py

@@ -0,0 +1,36 @@
+def gw_get(object_dict, name=None, plugin=None):
+        """
+        Getter function to retrieve objects from a given object dictionary.
+
+        Used mainly to provide get() inside patterns.
+
+        :param object_dict: objects, which must have 'name' and 'plugin' as attribute
+        :type object_dict: dictionary
+        :param name: name of the object
+        :type name: str
+        :param plugin: plugin name, which registers the object
+        :return: None, single object or dict of objects
+        """
+        if plugin is not None:
+            if name is None:
+                object_list = {}
+                for key in object_dict.keys():
+                    if object_dict[key].plugin == plugin:
+                        object_list[key] = object_dict[key]
+                return object_list
+            else:
+                if name in object_dict.keys():
+                    if object_dict[name].plugin == plugin:
+                        return object_dict[name]
+                    else:
+                        return None
+                else:
+                    return None
+        else:
+            if name is None:
+                return object_dict
+            else:
+                if name in object_dict.keys():
+                    return object_dict[name]
+                else:
+                    return None