Mercurial > cpython-lru_cache-weakref
diff Objects/enumobject.c @ 53950:afd62eb1692e
Merged revisions 72495 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r72495 | benjamin.peterson | 2009-05-08 21:07:04 -0500 (Fri, 08 May 2009) | 1 line
lookup __reversed__ correctly as a special method
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| author | Benjamin Peterson <benjamin@python.org> |
|---|---|
| date | Sat, 09 May 2009 17:21:13 +0000 |
| parents | 87fbbf22adf3 |
| children | db212869d814 |
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--- a/Objects/enumobject.c Sat May 09 11:55:12 2009 +0000 +++ b/Objects/enumobject.c Sat May 09 17:21:13 2009 +0000 @@ -222,7 +222,8 @@ reversed_new(PyTypeObject *type, PyObject *args, PyObject *kwds) { Py_ssize_t n; - PyObject *seq; + PyObject *seq, *reversed_meth; + static PyObject *reversed_cache = NULL; reversedobject *ro; if (type == &PyReversed_Type && !_PyArg_NoKeywords("reversed()", kwds)) @@ -231,8 +232,12 @@ if (!PyArg_UnpackTuple(args, "reversed", 1, 1, &seq) ) return NULL; - if (PyObject_HasAttrString(seq, "__reversed__")) - return PyObject_CallMethod(seq, "__reversed__", NULL); + reversed_meth = _PyObject_LookupSpecial(seq, "__reversed__", &reversed_cache); + if (reversed_meth != NULL) { + PyObject *res = PyObject_CallFunctionObjArgs(reversed_meth, NULL); + Py_DECREF(reversed_meth); + return res; + } if (!PySequence_Check(seq)) { PyErr_SetString(PyExc_TypeError,