[SciPy-dev] cython in scipy?

Jarrod Millman millman@berkeley....
Wed Oct 8 23:51:37 CDT 2008

On Wed, Oct 8, 2008 at 9:38 PM, Anne Archibald
<peridot.faceted@gmail.com> wrote:
> I've just been trying to clean up scipy.stats.vonmises.cdf: it's
> currently badly broken (tickets 747, 748, and 749). I can fix the
> outright bugs, but it also has distressingly large roundoff error
> under some circumstances. I'd like to simply implement the standard
> algorithm (Hill 1977) for evaluating it. Unfortunately, it involves
> evaluating a series with a number of terms that depends on the
> parameter, so vectorizing a python version (which is already written)
> is going to be a nuisance. On the other hand, it would be very easy to
> translate this into cython and get C performance out of it. So: is it
> okay to include cython code in scipy? What is the best way to go about
> this? Include the cython source in setup.py somehow? Check the
> generated C into svn and run cython by hand when I remember to?

Writing Cython code is fine with me.  I think you should check in the
generated C, though.


Jarrod Millman
Computational Infrastructure for Research Labs
10 Giannini Hall, UC Berkeley
phone: 510.643.4014

More information about the Scipy-dev mailing list