[issue20226] Argument Clinic: support for simple expressions?

[Georg Brandl]

New submission from Georg Brandl:

Take for example select.epoll.__new__():

static PyObject *
pyepoll_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
    int flags = 0, sizehint = FD_SETSIZE - 1;
    static char *kwlist[] = {"sizehint", "flags", NULL};

    if (!PyArg_ParseTupleAndKeywords(args, kwds, "|ii:epoll", kwlist,
                                     &sizehint, &flags))
        return NULL;

How should that be handled?  Currently I can't specify ``FD_SETSIZE - 1`` as the default value, but I don't want a magic ``-909`` either :)

----------
messages: 207946
nosy: georg.brandl
priority: normal
severity: normal
status: open
title: Argument Clinic: support for simple expressions?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20226>
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