txtorcon main feature is to present an asynchronous API to speak the Tor client protocol in Python. It also provides abstractions to track and get updates about Tor's state and current configuration (including writing it to Tor or disk), along with helpers to asynchronously launch slave instances of Tor including Twisted endpoint support.

This Ruby library can generate beautiful graphs for one or multiple datasets to be included in websites or in documents. The library can be used alone or with Ruby on Rails.

raspell is an interface binding for the Aspell spelling checker written in Ruby. It allows one to use the Aspell spelling checker from Ruby source code.

This small filter program extracts metadata from PNG images and displays them as either HTML, SOIF, RDF/XML or simple fields and values.