mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-01 07:33:08 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

lookup __reversed__ correctly as a special method

Browse source
This commit is contained in:
Benjamin Peterson 2009-05-09 02:07:04 +00:00
parent 84ad84e0bb
commit 809e22543f
2 changed files with 11 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

11
Objects/enumobject.c
View file

@ -222,7 +222,8 @@ static PyObject *
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 @@ reversed_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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,