Checking in the code for PEP 357.
This was mostly written by Travis Oliphant.
I've inspected it all; Neal Norwitz and MvL have also looked at it
(in an earlier incarnation).
diff --git a/Modules/operator.c b/Modules/operator.c
index 1a2ef85..53144f1 100644
--- a/Modules/operator.c
+++ b/Modules/operator.c
@@ -130,6 +130,20 @@
return NULL;
}
+static PyObject *
+op_index(PyObject *s, PyObject *a)
+{
+ Py_ssize_t i;
+ PyObject *a1;
+ if (!PyArg_UnpackTuple(a,"index", 1, 1, &a1))
+ return NULL;
+ i = PyNumber_Index(a1);
+ if (i == -1 && PyErr_Occurred())
+ return NULL;
+ else
+ return PyInt_FromSsize_t(i);
+}
+
static PyObject*
is_(PyObject *s, PyObject *a)
{
@@ -229,6 +243,7 @@
spam1(is_, "is_(a, b) -- Same as a is b.")
spam1(is_not, "is_not(a, b) -- Same as a is not b.")
+spam2(index, __index__, "index(a) -- Same as a.__index__()")
spam2(add,__add__, "add(a, b) -- Same as a + b.")
spam2(sub,__sub__, "sub(a, b) -- Same as a - b.")
spam2(mul,__mul__, "mul(a, b) -- Same as a * b.")