diff options
Diffstat (limited to 'Objects/listobject.c')
| -rw-r--r-- | Objects/listobject.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/Objects/listobject.c b/Objects/listobject.c index 09fba48..f54b97d 100644 --- a/Objects/listobject.c +++ b/Objects/listobject.c @@ -2098,7 +2098,8 @@ static PyObject * listindex(PyListObject *self, PyObject *args) { Py_ssize_t i, start=0, stop=Py_SIZE(self); - PyObject *v; + PyObject *v, *format_tuple, *err_string; + static PyObject *err_format = NULL; if (!PyArg_ParseTuple(args, "O|O&O&:index", &v, _PyEval_SliceIndex, &start, @@ -2121,7 +2122,20 @@ listindex(PyListObject *self, PyObject *args) else if (cmp < 0) return NULL; } - PyErr_SetString(PyExc_ValueError, "list.index(x): x not in list"); + if (err_format == NULL) { + err_format = PyUnicode_FromString("%r is not in list"); + if (err_format == NULL) + return NULL; + } + format_tuple = PyTuple_Pack(1, v); + if (format_tuple == NULL) + return NULL; + err_string = PyUnicode_Format(err_format, format_tuple); + Py_DECREF(format_tuple); + if (err_string == NULL) + return NULL; + PyErr_SetObject(PyExc_ValueError, err_string); + Py_DECREF(err_string); return NULL; } |