On 3 March 2010 20:28, Ondrej Certik <[email protected]> wrote:
>>
>> Cython could grow support for your use case... If you really feel you
>> will need this (as opposed to implementing the "Python" class),
>> perhaps I could take a look at it and implement something...
>
> Do you have some ideas how Cython could be improved to make my use case 
> easier?
>

The easier way to get something working would be to use a preprocessor
macro to control the storage (i.e. static vs. extern) of the symbols
you get in the generated C header... Then you just have to #include
the module API header like this:

#define CYTHON_USE_GLOBAL_API
#include <mymodule_api.h>

You will still need to call import_mymodule(), but you just need to do
it earlier in your code, likely a few lines below Py_Initialize()

Does this look good/easy enough for you?

> I can try to write something too --- I am still in the stage of
> figuring things out, not sure yet what I really want in details. I
> only know my general goal --- it should be easy for C++ users to use
> it, should be robust (no segfaults) and Python internals should not be
> visible at all. I am half way there already.
>

I have to insist: The best (though admittedly complex) way to do this
is you have a 'Python' class, in such a way its instances serve as a
execution context... If you start with this, using separate
interpreters (like Apache's mod_python) in the near future could be
straightforward.

-- 
Lisandro Dalcin
---------------
Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
Instituto de Desarrollo Tecnológico para la Industria Química (INTEC)
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
PTLC - Güemes 3450, (3000) Santa Fe, Argentina
Tel/Fax: +54-(0)342-451.1594
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