diff --git a/python/builtins.py b/python/builtins.py
index b39433d0..94271015 100644
--- a/python/builtins.py
+++ b/python/builtins.py
@@ -82,24 +82,11 @@ def sorted(iterable, key=None, reverse=False):
     return a
 
 def dir(obj=None):
-    """
-    dir([object]) -> list of strings
-    
-    If called without an argument, return the names in the current scope.
-    Else, return an alphabetized list of names comprising (some of) the attributes
-    of the given object, and of attributes reachable from it.
-    If the object supplies a method named __dir__, it will be used; otherwise
-    the default dir() logic is used and returns:
-      for a module object: the module's attributes.
-      for a class object: its attributes.
-      for any other object: its attributes, its class's attributes.
-    """
-    
     if obj is None:
         return list(globals().keys())
     
     if hasattr(obj, "__dir__"):
-        return obj.__dir__
+        return obj.__dir__()
     
     attributes = set()
     # Set object attributes.