Implement lazy_factory ✨🍰✨

lib/tfw/decorators/lazy_property.py

@@ -1,7 +1,7 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
-from functools import update_wrapper
+from functools import update_wrapper, wraps
 
 
 class lazy_property:
@@ -19,3 +19,12 @@ class lazy_property:
         value = self.func(instance)
         setattr(instance, self.func.__name__, value)
         return value
+
+
+def lazy_factory(fun):
+    class wrapper:
+        @wraps(fun)
+        @lazy_property
+        def instance(self):  # pylint: disable=no-self-use
+            return fun()
+    return wrapper()