Nils Wagner said:
Hi all,
Has someone written a C binding to transfer matrices from C to Python
and vice versa ?
Is your question more along the lines of "I have an algorithm written
in C that operates on matrices; how do I call it from Python?"
I presume you want Numeric or numarray matrices.
From easy to hard (and less to more powerful
:
- f2py will wrap C code. However, last I checked, the documentation
isn't the clearest on how to do this.
- weave in scipy (and I know you use scipy ;-). This allows you to
write C code inline; I think you can link with an external routine.
- pyrex is a Python-like language for writing extensions. To access
arrays, you'll have to include some definitions of the appropiate
array types from the Numeric or numarray headers.
- use SWIG to generate wrappers. You'll have to do a bit of work with
typemaps for passing arrays around.
- writing a C extension by hand. See the Python docs about writing
extensions, and the Numeric and numarray docs about the C API.
