From 1021c44b413ebe264a6187322447ac296a0a18a7 Mon Sep 17 00:00:00 2001 From: Raymond Hettinger Date: Fri, 7 Nov 2003 15:38:09 +0000 Subject: Optimize reversed(list) using a custom iterator. --- Objects/enumobject.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Objects/enumobject.c') diff --git a/Objects/enumobject.c b/Objects/enumobject.c index 998e3810a1..8b2e6e116b 100644 --- a/Objects/enumobject.c +++ b/Objects/enumobject.c @@ -174,8 +174,8 @@ reversed_new(PyTypeObject *type, PyObject *args, PyObject *kwds) if (!PyArg_UnpackTuple(args, "reversed", 1, 1, &seq)) return NULL; - /* Special case optimization for xrange */ - if (PyRange_Check(seq)) + /* Special case optimization for xrange and lists */ + if (PyRange_Check(seq) || PyList_Check(seq)) return PyObject_CallMethod(seq, "__reversed__", NULL); if (!PySequence_Check(seq)) { -- cgit v1.2.1