Subclassable C Extension

[Donn Cave]

Quoth "Joel Lucsy" <jjlucsy at concentric.net>:
| How does one write a subclassable C extension? I've written C extensions,
| but can't seem to figure out how to make it subclassable. I've tried using
| the CXX files from somewhereoranother, but that seems to GPF/coredump. I'll
| take examples, URL's to examples, or whatever. Thanks.

http://www.python.org/workshops/1995-12/papers/ahlstrom1.html