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* Fix ref counting in extend() and extendleft().

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* Let deques support reversed().
This commit is contained in:
Raymond Hettinger 2004-02-07 02:45:22 +00:00
parent b5ba8d749d
commit c058fd14a9
4 changed files with 101 additions and 7 deletions
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3
Objects/enumobject.c
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@ -174,8 +174,7 @@ reversed_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
if (!PyArg_UnpackTuple(args, "reversed", 1, 1, &seq))
return NULL;
/* Special case optimization for xrange and lists */
if (PyRange_Check(seq) || PyList_Check(seq))
if (PyObject_HasAttrString(seq, "__reversed__"))
return PyObject_CallMethod(seq, "__reversed__", NULL);
if (!PySequence_Check(seq)) {