Patch #1567691: super() and new.instancemethod() now don't accept

keyword arguments any more (previously they accepted them, but didn't
use them).

Lib/test/test_descr.py

@@ -2142,6 +2142,13 @@ def supers():
 
     veris(Sub.test(), Base.aProp)
 
+    # Verify that super() doesn't allow keyword args
+    try:
+        super(Base, kw=1)
+    except TypeError:
+        pass
+    else:
+        raise TestFailed, "super shouldn't accept keyword args"
 
 def inherits():
     if verbose: print "Testing inheritance from basic types..."

Lib/test/test_new.py

@@ -57,6 +57,14 @@ except TypeError:
 else:
     raise TestFailed, "dangerous instance method creation allowed"
 
+# Verify that instancemethod() doesn't allow keyword args
+try:
+    new.instancemethod(break_yolks, c, kw=1)
+except TypeError:
+    pass
+else:
+    raise TestFailed, "instancemethod shouldn't accept keyword args"
+
 # It's unclear what the semantics should be for a code object compiled at
 # module scope, but bound and run in a function.  In CPython, `c' is global
 # (by accident?) while in Jython, `c' is local.  The intent of the test

Misc/NEWS

@@ -12,6 +12,10 @@ What's New in Python 2.6 alpha 1?
 Core and builtins
 -----------------
 
+- Patch #1567691: super() and new.instancemethod() now don't accept
+  keyword arguments any more (previously they accepted them, but didn't
+  use them).
+
 - Fix a bug in the parser's future statement handling that led to "with"
   not being recognized as a keyword after, e.g., this statement:
   from __future__ import division, with_statement

Objects/classobject.c

@@ -2256,6 +2256,8 @@ instancemethod_new(PyTypeObject* type, PyObject* args, PyObject *kw)
 	PyObject *self;
 	PyObject *classObj = NULL;
 
+	if (!_PyArg_NoKeywords("instancemethod", kw))
+		return NULL;
 	if (!PyArg_UnpackTuple(args, "instancemethod", 2, 3,
 			      &func, &self, &classObj))
 		return NULL;

Objects/typeobject.c

@@ -5762,6 +5762,8 @@ super_init(PyObject *self, PyObject *args, PyObject *kwds)
 	PyObject *obj = NULL;
 	PyTypeObject *obj_type = NULL;
 
+	if (!_PyArg_NoKeywords("super", kwds))
+		return -1;
 	if (!PyArg_ParseTuple(args, "O!|O:super", &PyType_Type, &type, &obj))
 		return -1;
 	if (obj == Py_None)