/Modules/future_builtins.c
http://unladen-swallow.googlecode.com/ · C · 96 lines · 68 code · 21 blank · 7 comment · 7 complexity · 00176b95d0c7a93313a0a99b07c8cb40 MD5 · raw file
- /* 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 hexadecimal 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.");
- static PyObject *
- builtin_ascii(PyObject *self, PyObject *v)
- {
- return PyObject_Repr(v);
- }
- PyDoc_STRVAR(ascii_doc,
- "ascii(object) -> string\n\
- \n\
- Return the same as repr(). In Python 3.x, the repr() result will\n\
- contain printable characters unescaped, while the ascii() result\n\
- will have such characters backslash-escaped.");
- /* 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},
- {"ascii", builtin_ascii, METH_O, ascii_doc},
- {NULL, NULL} /* Sentinel */
- };
- /* Initialize this module. */
- PyMODINIT_FUNC
- initfuture_builtins(void)
- {
- PyObject *m, *itertools, *iter_func;
- char *it_funcs[] = {"imap", "ifilter", "izip", NULL};
- char **cur_func;
- m = Py_InitModule3("future_builtins", module_functions, module_doc);
- if (m == NULL)
- return;
- itertools = PyImport_ImportModuleNoBlock("itertools");
- if (itertools == NULL)
- return;
- for (cur_func = it_funcs; *cur_func; ++cur_func){
- iter_func = PyObject_GetAttrString(itertools, *cur_func);
- if (iter_func == NULL)
- return;
- PyModule_AddObject(m, *cur_func+1, iter_func);
- }
- Py_DECREF(itertools);
- /* any other initialization needed */
- }