From: Guido van Rossum <guido@python.org>
Date: Tue, 16 Aug 1994 22:13:47 +0000 (+0000)
Subject: If an attribute is deleted, __setattr__ is called with 2 instead of 3
X-Git-Tag: v1.1~198
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=91ab4a8353447f265a7559a4769ac5404bb0b157;p=thirdparty%2FPython%2Fcpython.git

If an attribute is deleted, __setattr__ is called with 2 instead of 3
arguments (adding __delattr__ was deemed too much overhead)
---

diff --git a/Objects/classobject.c b/Objects/classobject.c
index b8b72e9fd94e..a05c0bf368d7 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -459,7 +459,11 @@ instance_setattr(inst, name, v)
 {
 	object *ac;
 	if (inst->in_setattr != NULL) {
-		object *args = mkvalue("(sO)", name, v);
+		object *args;
+		if (v == NULL)
+			args = mkvalue("(s)", name);
+		else
+			args = mkvalue("(sO)", name, v);
 		if (args != NULL) {
 			object *res = call_object(inst->in_setattr, args);
 			DECREF(args);