commit 8f5cdaa784f555149adf5e94fd2e989f99d6b1db
author Raymond Hettinger <python@rcn.com> Sat Dec 13 11:26:12 2003 +0000
committer Raymond Hettinger <python@rcn.com> Sat Dec 13 11:26:12 2003 +0000
tree d6a8f66d75cc46f849b5933fb2a57b41e76a7d4f
parent feb78c94fa444a75b912ca355c3c80d7453f03f0

* Added a new method flag, METH_COEXIST.

* Used the flag to optimize set.__contains__(), dict.__contains__(),
  dict.__getitem__(), and list.__getitem__().

Objects/typeobject.c

diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index e4eadb8..545dba6 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -2792,8 +2792,9 @@
 
 	for (; meth->ml_name != NULL; meth++) {
 		PyObject *descr;
-		if (PyDict_GetItemString(dict, meth->ml_name))
-			continue;
+		if (PyDict_GetItemString(dict, meth->ml_name) &&
+			!(meth->ml_flags & METH_COEXIST))
+				continue;
 		if (meth->ml_flags & METH_CLASS) {
 			if (meth->ml_flags & METH_STATIC) {
 				PyErr_SetString(PyExc_ValueError,