On Mar 14, 1:42 pm, "Gabriel Genellina" <[EMAIL PROTECTED]>
wrote:
> En Wed, 14 Mar 2007 01:55:55 -0300, Frank <[EMAIL PROTECTED]> escribió:
>
> > is there anyone here that calls C++ programs from python via swig? It
>
> I suggest you read the responses to your previous question; also search
> the
En Wed, 14 Mar 2007 01:55:55 -0300, Frank <[EMAIL PROTECTED]> escribió:
> is there anyone here that calls C++ programs from python via swig? It
I suggest you read the responses to your previous question; also search
the list archives for this month.
--
Gabriel Genellina
--
http://mail.pytho
Check out this example from NumPy. This would be the way sanctioned by
the scipy community, as you benefit from a large library of matrix
routines that you can use to prepare/postprocess the data.
http://www.scipy.org/Cookbook/SWIG_and_NumPy
--
http://mail.python.org/mailman/listinfo/python-lis
> Well, pyogre has few problems with maintenance, and new bindings to
> Ogre engine was
> created using Boost.Python( http://www.ogre3d.org/wiki/index.php/PyOgre )
oh
last time i played with pyogre they made a transition from boost to
swig :)
so they are back again at boost
(the problem with boos
On 14 Mar 2007 02:38:32 -0700, Szabolcs Nagy <[EMAIL PROTECTED]> wrote:
> > - A c++ program receives a 2D-matrix from python as input and gives a
> > 2D-matrix as output back to python.
>
> pyogre uses swig
Well, pyogre has few problems with maintenance, and new bindings to
Ogre engine was
created
> - A c++ program receives a 2D-matrix from python as input and gives a
> 2D-matrix as output back to python.
pyogre uses swig
ogre is a 3d realtime rendering engine written in c++ so there are
many matrix manipulation there and also pyogre does not modify the
original code
cgkit is a computer g
On 13 Mar 2007 21:55:55 -0700, Frank <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> is there anyone here that calls C++ programs from python via swig? It
> seems that there are a lot of different ways to do that. For me it
> would be important that the original c++ code (which is available)
> does not need
Hi,
is there anyone here that calls C++ programs from python via swig? It
seems that there are a lot of different ways to do that. For me it
would be important that the original c++ code (which is available)
does not need to be changed and the whole compilation process (swig -
python g++e
At Tuesday 7/11/2006 17:43, Sheldon wrote:
> And what are those non-static functions used for? The *only* purpose
> of your module should be to provide the Python bindings...
I wrote the C module to do some number crunching. Now I just need to
"connect" it to my python program. Should the initm
Gabriel Genellina skrev:
> At Tuesday 7/11/2006 17:27, Sheldon wrote:
>
> >Here is the file/module name: _msgpps_functions.c
> >Here is the initfunction:
> >
> >PyMODINIT_FUNC init_msgpps_functions(void) {
> > PyObject* m;
> > m=Py_InitModule("_msgpps_functions",_msgpps_functionsMethods);
> >
Hi,
> For a module called foo.c the initialization function must be called
> initfoo (*not* init_foo)
Ok, I fixed this part. Thanks
> And what are those non-static functions used for? The *only* purpose
> of your module should be to provide the Python bindings...
I wrote the C module to do so
At Tuesday 7/11/2006 17:27, Sheldon wrote:
Here is the file/module name: _msgpps_functions.c
Here is the initfunction:
PyMODINIT_FUNC init_msgpps_functions(void) {
PyObject* m;
m=Py_InitModule("_msgpps_functions",_msgpps_functionsMethods);
ErrorObject = PyString_FromString("_msgpps_functi
At Tuesday 7/11/2006 17:10, Sheldon wrote:
> Take a look at the documentation for creating extension modules,
> especially the following page:
>
> http://docs.python.org/ext/methodTable.html
>
> "The initialization function must be named initname(), where name is the
> name of the module, and sh
Robert Kern skrev:
> Sheldon wrote:
>
> > This function is there and is called init_mymodule() but I have other
> > functions that are not static.
>
> Is the module's name "_mymodule"? Or is it "mymodule"?
>
> --
> Robert Kern
>
> "I have come to believe that the whole world is an enigma, a harml
Sheldon wrote:
> This function is there and is called init_mymodule() but I have other
> functions that are not static.
Is the module's name "_mymodule"? Or is it "mymodule"?
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by o
Farshid Lashkari skrev:
> Sheldon wrote:
> > Can anyone give me some idea as to what this error means?
> >
> > "ImportError: dynamic module does not define init function "
> >
> > I am new at this and there is still a lot to learn.
> >
> > Any help is appreciated,
>
> Take a look at the documenta
Sheldon wrote:
> Can anyone give me some idea as to what this error means?
>
> "ImportError: dynamic module does not define init function "
>
> I am new at this and there is still a lot to learn.
>
> Any help is appreciated,
Take a look at the documentation for creating extension modules,
espe
Hi,
Can anyone give me some idea as to what this error means?
"ImportError: dynamic module does not define init function "
I am new at this and there is still a lot to learn.
Any help is appreciated,
/Sheldon
--
http://mail.python.org/mailman/listinfo/python-list
> particularly CPU-bound, and the comprehensive Python library is a
> big help.
>
> So, I'm looking for a C++ wrapper generator, so that I can
> write a class in Python, and then have a .h and .cpp generated
> that will give me a corresponding C++ class.
>
> Of co
on library is a
big help.
So, I'm looking for a C++ wrapper generator, so that I can
write a class in Python, and then have a .h and .cpp generated
that will give me a corresponding C++ class.
Of course, the usual restrictions apply: no dynamically
added methods, accessing all instance
Shi, Jue wrote:
> Hello, Gurus,
>
> I have a question on wrapping C function in Python.
>
>
> My C code is like this:
>
> typedef void (WINAPI *myCallBack) (unsigned int myarg1, unsigned int myarg2)
>
> bool myfunc(myCallBack callfunc)
>
>
> Now I want to call myfunc in Python, what should I do?
Hello, Gurus,
I have a question on wrapping C function in Python.
My C code is like this:
typedef void (WINAPI *myCallBack) (unsigned int myarg1, unsigned int myarg2)
bool myfunc(myCallBack callfunc)
Now I want to call myfunc in Python, what should I do?
Thanks,
Stone
--
http://mail.py
In article <[EMAIL PROTECTED]>,
"Java and Swing" <[EMAIL PROTECTED]> wrote:
> one more update...
>
> if I remove PyMem_Free and free(...) ...so no memory clean up...I can
> still only call doStuff 4 times, the 5th attemp crashes Python.
>
> Java and Swing wrote:
> > update:
> > if I use C's fre
"Java and Swing" wrote:
> anyhow, for receiving an object from python..is it
>
> ok = PyArg_ParseTuple(args, "sO", &x, &y);
>
> ...is it "sO" or "s0" is it O (as in the letter) or 0 (as in the
> number)? I would think "O" the letter..but it looks like a zero.
eh? if you're not sure, what ke
Java and Swing wrote:
> and I get this error..
>
> C:\project\myapp.c(549) : error C2040: 'get_long_array' : 'long
> *(struct _object *,int *)' differs in levels of indirection from 'int
> ()'
so what's on line 549 in myapp.c?
what other warnings did you get from the compiler?
do you have other
the reference count of
the object they return. This leaves the caller with the responsibility
to call Py_DECREF() when they are done with the result; this soon
becomes second nature."
URL: http://www.python.org/doc/api/refcounts.html
So does that mean before my C wrapper function exits, or retu
I have been posting lately about writing a C wrapper so Python can
access my C functions.
In my wrapper function I have something like...
static PyObject *wrap_doStuff(PyObject *self, PyObject *args) {
PyObject *data;
char *result;
long *d;
PyArg_ParseTuple(args, "O:wrap_do
I got it. I had get_long_array placed after the method that was
calling it..
i.e.
void doStuf(...) {
x = get_long_array(...);
}
static long *get_long_array(PyObject *data, int *data_size) {
...
}
...I put get_long_array before it in my code..and its fine.
Thanks
Java and Swing wrote:
> Fr
Fredrik,
...I tried using your code...
static long *get_long_array(PyObject *data, int *data_size) {
int i, size;
long* out;
PyObject* seq;
seq = PySequence_Fast(data, "expected a sequence");
if (!seq)
return NULL;
size = PySequence_Size(seq);
if (size < 0)
Fredrik...I forgot about that...wish Google Groups had a way to quickly
find the topics a user posts.
anyhow, for receiving an object from python..is it
ok = PyArg_ParseTuple(args, "sO", &x, &y);
...is it "sO" or "s0" is it O (as in the letter) or 0 (as in the
number)? I would think "O" the
Jeremy Moles wrote:
> Probably what you want to do though is just keep the tuple as is and
> iterate over it using the PySequence_* protocol:
>
> http://docs.python.org/api/sequence.html
I did post a complete and tested example a few days ago, which contained
code that showed how to do this. a c
Wed, 2005-10-12 at 13:06 -0700, Java and Swing wrote:
> I have a C function which takes an array of long values..
>
> I understand that I can pass a tuple to a C wrapper function and in the
> C wrapper function have..
>
> int ok = PyArg_ParseTuple(args, "s(ll)", &a,
I have a C function which takes an array of long values..
I understand that I can pass a tuple to a C wrapper function and in the
C wrapper function have..
int ok = PyArg_ParseTuple(args, "s(ll)", &a, &b, &c);
..that's great if my tuple only contained two longs..
Bernhard Herzog wrote:
> "Java and Swing" <[EMAIL PROTECTED]> writes:
>
> > char *foo(const char *in) {
> > char *tmp;
> > tmp = (char *) malloc((strlen(in) * sizeof(char)) + 1);
> > strcpy(tmp, in);
> > ...
> > ...
> > free(tmp);
> > return someValue;
> > }
> >
> > Is
"Java and Swing" <[EMAIL PROTECTED]> writes:
> char *foo(const char *in) {
> char *tmp;
> tmp = (char *) malloc((strlen(in) * sizeof(char)) + 1);
> strcpy(tmp, in);
> ...
> ...
> free(tmp);
> return someValue;
> }
>
> Is that appropriate? I was under the impression tha
As far as my C Wrapper functions are concerned...I no longer have the
need for free(...). I do use PyMem_Free, for structures I allocated by
using PyMem_New(...).
In my C code I do have things such as...
char *foo(const char *in) {
char *tmp;
tmp = (char *) malloc((strlen(in) * sizeof
"Java and Swing" <[EMAIL PROTECTED]> writes:
> thanks for the tip, however even when I do not free aString or bString,
> i'm still crashing at the malloc in the c function, not the wrapper.
Do you have any more places where you use free incorrectly? In my
experience, calling free with invalid va
thanks for the tip, however even when I do not free aString or bString,
i'm still crashing at the malloc in the c function, not the wrapper.
Bernhard Herzog wrote:
> "Java and Swing" <[EMAIL PROTECTED]> writes:
>
> > static PyObject *wrap_doStuff(PyObject *self, PyObject *args) {
> [...]
> >
"Java and Swing" <[EMAIL PROTECTED]> writes:
> static PyObject *wrap_doStuff(PyObject *self, PyObject *args) {
[...]
> char *aString = 0;
> char *bString = 0;
[...]
> int ok = PyArg_ParseTuple(args, "sss", &in, &aString, &bString);
[...]
> free(aString);
> free(bStrin
ideas why this is crashing when calling from Python via C
wrapper?
Java and Swing wrote:
> Sorry about the double post...
>
> anyhow, after putting in debug statements I found that it was crashing
> when it called, free(result)so I removed the free(result).
>
> now it crashes
Sorry about the double post...
anyhow, after putting in debug statements I found that it was crashing
when it called, free(result)so I removed the free(result).
now it crashes when it gets to, b = GetVal(bString, count(bString,
","));
..any ideas?
Java and Swing wrote:
> Antoon,
>I just
Antoon,
I just saw that to. I updated the code like so...
static PyObject *wrap_doStuff(PyObject *self, PyObject *args) {
// this will store the result in a Python object
PyObject *finalResult;
// get arguments from Python
char *result = 0;
char *in= 0;
Antoon,
I just saw that to. I updated the code like so...
static PyObject *wrap_doStuff(PyObject *self, PyObject *args) {
// this will store the result in a Python object
PyObject *finalResult;
// get arguments from Python
char *result = 0;
char *in= 0;
Op 2005-10-12, Java and Swing schreef <[EMAIL PROTECTED]>:
> static PyObject *wrap_doStuff(PyObject *self, PyObject *args) {
> // this will store the result in a Python object
> PyObject *finalResult;
>
> // get arguments from Python
> char *result = 0;
> char *in= 0;
one more update...
if I remove PyMem_Free and free(...) ...so no memory clean up...I can
still only call doStuff 4 times, the 5th attemp crashes Python.
Java and Swing wrote:
> update:
> if I use C's free(result), free(a) free(b) instead of PyMem_Free...I
> only get one successfuly use/call of do
update:
if I use C's free(result), free(a) free(b) instead of PyMem_Free...I
only get one successfuly use/call of doStuff.
i.e.
// this works
doStuff(...)
// python crashes here
doStuff(...)
Java and Swing wrote:
> static PyObject *wrap_doStuff(PyObject *self, PyObject *args) {
> // this w
static PyObject *wrap_doStuff(PyObject *self, PyObject *args) {
// this will store the result in a Python object
PyObject *finalResult;
// get arguments from Python
char *result = 0;
char *in= 0;
char *aString = 0;
char *bString = 0;
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