> Hello all, > > (resending for the Nth time, as the previous attempts > didn't make it to the list) > > I'm new to this list (and numpy is mostly new to me :-). > > Using python 2.6 and numpy 1.3. > > My plan is to write some C extensions that will perform > rather specialised processing on multichannel digital audio > data stored stored in numpy arrays. > > Sinc 2.6 python has a new buffer protocol, and referring > to this, the numpy website states rather fuzzily: > > Of course, numpy makes a good interoperation library to > support the buffer protocol. Numpy can both consume and > produce protocol-supporting objects. A numpy ndarray can > be constructed as a view of an object supporting the > buffer protocol, and a numpy ndarray supports buffer > object views of its data. > > I'd want the C code to be based on using the new buffer > protocol - everything else is marked as 'deprecated', also > in the numpy docs. > > But it remains quite unclear if numpy 1.3 does or does not > support this, and if yes, how.
It does not support the new buffer protocol -- the stuff on the web page refers to the old buffer protocol. You might consider using Cython for at least smaller parts of your work -- it has support for the new buffer protocol as well as emulating it for NumPy arrays for any NumPy version. http://wiki.cython.org/enhancements/buffer As well as Cython/Includes/numpy.pxd within the Cython distribution. A short look at numpy.pxd will tell you how to write NumPy-specific access to get the same information that the buffer protocol would have given you, if you want to stay in C. Dag Sverre _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
