Hi group! I've been working on wrapping libeinspline, a comprehensive C library for creating and evaluating cubic B-splines in 1-3 dimensions and real and complex data types. The wrap is done using cffi, and it runs with Pypy and Cpython. I've now put an alpha version online at https://bitbucket.org/kfj/python-bspline I am pointing you to this project since it actually works well with Pypy and has a few bits in it which you may find inspiring. I'd welcome comments. I wrote the wrapper because I wanted B-splines for a Pypy pet project of mine and couldn't find anything suitable. It may be of use while a Pypy version of scipy hasn't materialized, and even has a few bits which I haven't found in scipy. Kay F. Jahnke