key.c: Use tuple functions on `KeyError' argument tuple.

diff --git a/key.c b/key.c
index 1a57bd8..dc1b849 100644 (file)
--- a/key.c
+++ b/key.c
@@ -48,7 +48,7 @@ static PyObject *kxmeth___init__(PyObject *me, PyObject *arg)
       PyObject_SetAttrString(me, "errstring", x))
     goto end;
   Py_DECREF(x); x = 0;
-  if ((x = PySequence_GetSlice(arg, 1, PySequence_Size(arg))) == 0 ||
+  if ((x = PyTuple_GetSlice(arg, 1, PyTuple_GET_SIZE(arg))) == 0 ||
       PyObject_SetAttrString(me, "args", x))
     goto end;
   Py_DECREF(x); x = 0;