Added future_builtins, which contains PEP 3127 compatible versions of hex() and oct().

Modules/future_builtins.c

@@ -0,0 +1,69 @@
+
+/* future_builtins module */
+
+/* This module provides functions that will be builtins in Python 3.0,
+   but that conflict with builtins that already exist in Python
+   2.x. */
+
+
+#include "Python.h"
+
+PyDoc_STRVAR(module_doc,
+"This module provides functions that will be builtins in Python 3.0,\n\
+but that conflict with builtins that already exist in Python 2.x.\n\
+\n\
+Functions:\n\
+\n\
+hex(arg) -- Returns the hexidecimal representation of an integer\n\
+oct(arg) -- Returns the octal representation of an integer\n\
+\n\
+The typical usage of this module is to replace existing builtins in a\n\
+module's namespace:\n \n\
+from future_builtins import hex, oct\n");
+
+static PyObject *
+builtin_hex(PyObject *self, PyObject *v)
+{
+	return PyNumber_ToBase(v, 16);
+}
+
+PyDoc_STRVAR(hex_doc,
+"hex(number) -> string\n\
+\n\
+Return the hexadecimal representation of an integer or long integer.");
+
+
+static PyObject *
+builtin_oct(PyObject *self, PyObject *v)
+{
+	return PyNumber_ToBase(v, 8);
+}
+
+PyDoc_STRVAR(oct_doc,
+"oct(number) -> string\n\
+\n\
+Return the octal representation of an integer or long integer.");
+
+
+/* List of functions exported by this module */
+
+static PyMethodDef module_functions[] = {
+ 	{"hex",		builtin_hex,        METH_O, hex_doc},
+ 	{"oct",		builtin_oct,        METH_O, oct_doc},
+	{NULL,		NULL}	/* Sentinel */
+};
+
+
+/* Initialize this module. */
+
+PyMODINIT_FUNC
+initfuture_builtins(void)
+{
+	PyObject *m;
+
+	m = Py_InitModule3("future_builtins", module_functions, module_doc);
+	if (m == NULL)
+		return;
+
+	/* any other initialization needed */
+}