I am writing a C extension with python 2.3.5 and need constructs
similar to python
func(*args, **kwds)
What's a neat way to do that?
I found pyrex has a __Pyx_GetStarAr gs -
is there something I'm missing from the regular C/API maybe using one
of the PyArg_Parse.. calls ?
Thanks,
M. 6 1570 md*****@gmail.c om wrote: I am writing a C extension with python 2.3.5 and need constructs similar to python func(*args, **kwds) What's a neat way to do that? I found pyrex has a __Pyx_GetStarAr gs - is there something I'm missing from the regular C/API maybe using one of the PyArg_Parse.. calls ?
Thanks, M.
It looks like the PyArg_ParseTupl eAndKeywords API call is what you are
looking for. Documentation is http://python.org/doc/2.4.2/ext/pars...dKeywords.html
I saw that in 2.4, although it's not clear how I can make it work. the
argument char *format and char *keywords[] are fixed there. Does anyone
have a working example?
I'm just wondering if there are plans or already an API/C in python
core similar to __Pyx_GetStarAr gs. It seems like a very usefull and
common thing for extensions writer.
pyrex actually does a very neat job, looking at its output is really
instructive. How widespread is this solution? I started my extensions
long ago before realizing such solution existed, and rather stick to a
regular python API, understood this is what pyrex generates -
M.
Raymond L. Buvel wrote: md*****@gmail.c om wrote: I am writing a C extension with python 2.3.5 and need constructs similar to python func(*args, **kwds) What's a neat way to do that? I found pyrex has a __Pyx_GetStarAr gs - is there something I'm missing from the regular C/API maybe using one of the PyArg_Parse.. calls ?
Thanks, M.
It looks like the PyArg_ParseTupl eAndKeywords API call is what you are looking for. Documentation is
http://python.org/doc/2.4.2/ext/pars...dKeywords.html
essentially I already use PyArg_ParseTupl eAndKeywords, but that seems
to emulate fixed arg list definitions like -
func (x,y,t=0,u=1) md*****@gmail.c om wrote: I am writing a C extension with python 2.3.5 and need constructs similar to python func(*args, **kwds) What's a neat way to do that?
static PyObject*
myfunc(PyObject * self, PyObject* args, PyObject* kw)
{
... args is a tuple, kw is a dictionary ...
}
static PyMethodDef _functions[] = {
{"myfunc", (PyCFunction) myfunc, METH_VARARGS|ME TH_KEYWORDS},
{NULL, NULL}
};
</F>
On Wed, 2005-12-14 at 12:00, md*****@gmail.c om wrote: essentially I already use PyArg_ParseTupl eAndKeywords, but that seems to emulate fixed arg list definitions like - func (x,y,t=0,u=1)
It's unclear what you are actually trying to accomplish. My guess is
that you want to implement a function/method that takes any number of
arbitrarily named keyword arguments. If that is the case, you can simply
use the dictionary that is passed to your C function as the third
argument.
Hope this helps,
Carsten. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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