This is a list of open source projects I maintain, as well as some experimental and demonstration pieces
Django Adjacency-List trees using PostgreSQL Common Table Expressions (CTE). Its aim is to completely hide the management of tree structure.
Pickleable wrappers for Python collections with non-built-in type keys and cycles or self-references.
Programmatic building of JSON schemas (document and field mappings) with validation.
Simple Greek GSIS VAT Registration Utilities, one of the official RESTful API implementations for the Greek GSIS VAT service.