[C++-sig] How to convert a Python Tuple into a C/C++ array?

[aashish at iastate.edu]

Hi,

Well I am not sure if you are using boost.python but if you are then you
can use vector_indexing_suite.

There are some other ways too but they are more complicated than this one.

~regards,
aashish


> Hello everyone,
>
> While embedding my C++ program with Python, I am impeded by the conversion
> from a Python Tuple to a C++ array.  I hope to get some assistance from
> you
> guys.
>
> I have a sequence of float numbers to be passed from Python to C++, with
> indefinite size. So I chose to use Tuple on the Python side.  Since
> PyArg_ParseTuple() has no appropriate format to parse Tuple (The Tuple I
> am
> saying is not the Tuple of arguments) of arbitray size, I simply passed
> the
> tuple as follows
>
> PyObject* myTuple;
>   if(!PyArg_ParseTuple(args,"O",&myTuple))
>     return NULL;
>
> Now I have the pointer, myTuple, to the Tuple passed in. How can I convert
> the the entired tuple, myTuple pointing to, into a float array, or convert
> an individual element into a C/C++ float number? Are there any conversion
> functions?
>
> Any suggestions or hints will be deeply appreciated!
>
> Thanks in advance!
>
> Jinming
>
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-----------------------------------------------
Aashish Chaudhary       | Email:
Research Assistant      | ashish_cy at yahoo.com
Iowa State University   | aashish at iastate.edu
Ames, Iowa - USA        | Ph: (515) 441-1178
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