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Make bin() implementation parallel oct() and hex() so that int/long subclasses can override or so that other classes can support.

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This commit is contained in:
Raymond Hettinger 2008-06-20 04:18:15 +00:00
parent e0f124495b
commit e3ae655edf
7 changed files with 49 additions and 2 deletions
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19
Python/bltinmodule.c
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@ -211,7 +211,24 @@ Deprecated since release 2.3. Instead, use the extended call syntax:\n\
static PyObject *
builtin_bin(PyObject *self, PyObject *v)
{
return PyNumber_ToBase(v, 2);
PyNumberMethods *nb;
PyObject *res;
if ((nb = v->ob_type->tp_as_number) == NULL ||
nb->nb_hex == NULL) {
PyErr_SetString(PyExc_TypeError,
"bin() argument can't be converted to hex");
return NULL;
}
res = (*nb->nb_bin)(v);
if (res && !PyString_Check(res)) {
PyErr_Format(PyExc_TypeError,
"__bin__ returned non-string (type %.200s)",
res->ob_type->tp_name);
Py_DECREF(res);
return NULL;
}
return res;
}
PyDoc_STRVAR(bin_doc,