Following people deserve credit for either providing input to Vampire in the way of ideas or source code, either explicitly or otherwise:
Ian Bicking - Author of code found in the file being distributed as "vampire/forms.py". This file was borrowed with permission from the FormEncode/Validator package. That package as a whole was licenced under the Python Software Foundation Licence and is available from "http://formencode.org".
Nicolas Lehuen - Provided the initial idea for a two level locking scheme within the module caching system, rather than just a single lock on the whole module cache. This has the effect of reducing contention on the module cache and not unnecessarily blocking new requests while an unrelated module is being imported. Also influenced the design of the rules system governing the object traversal mechanism.
Graham Dumpleton - I wrote the stuff, can't I get some credit. :-)