Index: Python/bltinmodule.c
===================================================================
--- Python/bltinmodule.c	(revision 61050)
+++ Python/bltinmodule.c	(working copy)
@@ -1576,38 +1576,39 @@
 		ilow = NULL;
 	}
 	assert(ihigh != NULL);
-	Py_INCREF(ihigh);
 
 	/* ihigh correct now; do ilow */
-	if (ilow == NULL)
-		ilow = zero;
-	Py_INCREF(ilow);
-
-	/* ilow and ihigh correct now; do istep */
-	if (istep == NULL) {
-		istep = PyLong_FromLong(1L);
-		if (istep == NULL)
-			goto Fail;
+	if (ilow == NULL) {
+	        ilow = zero;
+		Py_INCREF(ilow);
 	}
-	else {
-		Py_INCREF(istep);
-	}
-
-	if (!PyInt_Check(ilow) && !PyLong_Check(ilow)) {
+	else if (PyInt_Check(ilow))
+		Py_INCREF(ilow);
+	else if (!(ilow = PyNumber_Long(ilow))) {
 		PyErr_Format(PyExc_TypeError,
 			     "range() integer start argument expected, got %s.",
 			     ilow->ob_type->tp_name);
 		goto Fail;
 	}
 
-	if (!PyInt_Check(ihigh) && !PyLong_Check(ihigh)) {
+	if (PyInt_Check(ihigh))
+		Py_INCREF(ihigh);
+	else if (!(ihigh = PyNumber_Long(ihigh))) {
 		PyErr_Format(PyExc_TypeError,
 			     "range() integer end argument expected, got %s.",
 			     ihigh->ob_type->tp_name);
 		goto Fail;
 	}
 
-	if (!PyInt_Check(istep) && !PyLong_Check(istep)) {
+	/* ilow and ihigh correct now; do istep */
+	if (istep == NULL) {
+		istep = PyLong_FromLong(1L);
+		if (istep == NULL)
+			goto Fail;
+	}
+	else if (PyInt_Check(istep))
+		Py_INCREF(istep);
+	else if (!(istep = PyNumber_Long(istep))) {
 		PyErr_Format(PyExc_TypeError,
 			     "range() integer step argument expected, got %s.",
 			     istep->ob_type->tp_name);
@@ -1669,8 +1670,8 @@
 	return v;
 
   Fail:
-	Py_DECREF(ilow);
-	Py_DECREF(ihigh);
+	Py_XDECREF(ilow);
+	Py_XDECREF(ihigh);
 	Py_XDECREF(istep);
 	Py_DECREF(zero);
 	Py_XDECREF(curnum);