Mantissa is an application server. It provides integration between the Axiom object database and the Twisted framework, as well as Web user-interface utilities. Mantissa is the deployment target: it can serve an application over several protocols; HTTP is one of those protocols, but HTTP isn't treated specially by the software.
Nevow is a Web application construction kit. It is designed to allow the programmer to express as much of the view logic as desired in Python, and includes a pure Python XML expression syntax, named stan, to facilitate this. It also provides rich support for designer-edited templates, using a very small XML attribute language to provide bi-directional template manipulation capability.
Divmod Sine is a standards-based voice-over-IP application server, built as an offering for the Mantissa application server platform. It owes much of its development to the Shtoom project, which implements a soft-phone in Python. Sine provides a SIP registrar, SIP proxy, third party call control, voicemail, and configuration through the Web based on Divmod Mantissa.
Divmod Vertex is an implementation of Q2Q, a protocol for opening authenticated connections, even through NAT. It allows a user to reliably demonstrate their identity (for distributed authentication) and receive real-time data directly from other users, and provides a mechanism for a user to decide whether they want to expose their IP address to a third party before accepting a peer-to-peer connection. It is byte-stream oriented and application-agnostic. Any peer-to-peer application can use Q2Q to open connections and deliver messages.
DocBook is an XML vocabulary which enables you to create document content in a presentation-neutral form that captures the logical structure of the content. Using the DocBook Project XSL stylesheets, you can publish DocBook content as HTML pages and PDF files and other formats, including man pages, HTML Help, and JavaHelp.
Dosage is designed to keep a local copy of specific Web comics and other picture-based content such as Picture of the Day sites. With the dosage command line, script you can get the latest strip of a Web comic, catch up to the last strip downloaded, or download a strip for a particular date/index (if the comic's site layout makes this possible).