The gsl-library is since version 1.0 stable and for general use.
More information about it at http://www.gnu.org/software/gsl/.
Nearly all modules are wrapped. A lot of tests are
covering various functionality. Please report to the mailing list
firstname.lastname@example.org if you find a bug.
The hankel modules have been
wrapped. Please write to the mailing list
if you require one of the modules
and are willing to help with a simple example.
If any other function is missing or some other module (e.g. ntuple) or
function, do not hesitate to write to the list.
You can download it here: http://sourceforge.net/projects/pygsl