On 26 May 2007 02:19:39 -0700, bullockbefriending bard <[EMAIL PROTECTED]> wrote: ... > Essentially, I need to pass a list of 6-tuples containing only > integers to my new sadly necessary super-fast compiled language > function which i am not looking forward to writing: > > input: [(1,2,3,4,5,6), (7,8,9,10,11,12),...] > > and after much thrashing of processor resources, return data which > looks like this to the Python calling environment: > > output: [( (1, 2), (1,), (12,), (13), (1, 7, 11), (9,) ), ( another > nested tuple like preceding one ), .... ] ... > However, I hope someone reading this will be able to tell me that I'm > being a total pessimist and that in fact it isn't very difficult to do > what I want to do using SWIG.
You're talking about the actual conversion between Python data structures and C or C++ data structures? That is easy to do even manually, IMHO -- provided a decent C background. Have a look in the Python/C API Reference Manual, and the mapping becomes clear. The PyListObject stuff for example, where there's a C function for every basic operation on lists, and where the elements have the C type PyObject. And so on. Mapping to C is just a matter of walking a nested data structure, where you have a good idea what it is supposed to look like (a list of six-tuples of some kind of numbers). /Jorgen -- // Jorgen Grahn <grahn@ Ph'nglui mglw'nafh Cthulhu \X/ snipabacken.dyndns.org> R'lyeh wgah'nagl fhtagn! -- http://mail.python.org/mailman/listinfo/python-list
