Mother is a framework written in Python and based on Twisted. It is designed to make development of Web applications easy and fast. It provides: simple URL mapping to code; handling of multiple content types (HTML, JSON, etc.); integration with Tentacles ORM; and the use of templating tools (currently, only Mako is supported).
DeTraS provides several tools to track development activities by registering applications that developers use on an X11 session. It also allows you to send collected data to a server and takes care about your privacy. The idea behind DeTraS is taken from Timeline, a shell script written by Nat Friedman.
Ibid is a multi-protocol, general purpose, instant messaging chat bot written in Python. It aims for a naturalistic interface rather than strict-syntax commands. Ibid understands many protocols, including IRC, Jabber/XMPP/Google Talk, Campfire, NMDC, and SILC. It also interacts over SMTP, HTTP, and various RPC protocols. Ibid aims to make plugins as easy as possible to write. It ships with a large collection of plugins for looking up information, performing conversions, storing factoids, delivering messages, and much more.
ZaK is a property management system for hotel and bed-and-breakfast hosts. It's a Web application, consisting of a server and an HTML UI. ZaK offers basic features like reservation invoices, tableau, and customer database handling. It's possible to connect ZaK, natively, with an online booking engine and with a channel manager to manage online travel agencies, such as Expedia and booking.com.
Cyclone is a low-level network toolkit that provides support for HTTP 1.1 in an API very similar to the one implemented by the Tornado Web server. It has localization based on gettext with pluralization support, native support for XMLRPC and JSONRPC, native support for WebSockets (drafts 75 and 76), decent support for sending plain text or HTML email with TLS and attachments, built-in support for Redis, and support for HTTP authentication.