Pure Python SQL database supporting NULLs
SnakeSQL is a pure Python SQL database written to remove the dependence of the Python Web Modules on 3rd party drivers for non-Python databases like MySQL but designed to be a useful database in its own right.
The database supports the simplest possible subset of ANSI SQL 92 including NULLs (something other pure Python databases such as Gadfly do not currently support).
The database is fully DB-API 2.0 compliant and is written in layers so that it can easily be extended to support different storage mechanisms. Currently implemented are a fast binary DBM driver (default) and a slower CSV file driver (handy for viewing table contents when designing and developing an application or database structure).