From 677fc843ea458642dfea59d7fc8644356d096c00 Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Fri, 13 Mar 1998 20:12:17 +0000 Subject: [PATCH] As Mike Fletcher pointed out, a __deepcopy__() method should be called with the memo as an argument. --- Lib/copy.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Lib/copy.py b/Lib/copy.py index 1fbd48178af..1bdd4e15d6d 100644 --- a/Lib/copy.py +++ b/Lib/copy.py @@ -215,7 +215,7 @@ def _keep_alive(x, memo): def _deepcopy_inst(x, memo): if hasattr(x, '__deepcopy__'): - return x.__deepcopy__() + return x.__deepcopy__(memo) if hasattr(x, '__getinitargs__'): args = x.__getinitargs__() _keep_alive(args, memo)