Version 11 (modified by Itamar Turner-Trauring, 8 years ago) (diff)

Improvements to the text

Google Summer of Code 2012

Getting in Touch

If you're interested in participating, please email itamar at itamarst dot org. (If you don't get a timely response, try the mailing list, my spam filter can be aggressive sometimes).

Project Ideas

These are just ideas, we're open to other ideas as well.


IPv6: IPv6 is the new networking standard for the Internet; World IPv6 Day is happening soon ( We are still missing SSL, UDP, and multicast IPv6 support, not to mention IPv6 DNS lookups. Add IPv6 support for these transports with a full API and test coverage for these additions. Add relevant examples and documentation.

Requirements: In addition to Python, a decent understanding of networking and socket APIs.

Debugging UI

Build a user interface (a GUI, or maybe even Web-based). The idea is to have a debugging user interface for running a Twisted process that shows existing listening ports and open connections, and allows you to view bytes flowing over the transports. This would look you look at a running Twisted program and see what was going on inside and what data was flowing through it. (Twisted currently includes a half-broken "gladereactor" that is a gtk-based half-finished implementation of this). You'll learn about Twisted's internals, and get to build an interesting user interface and present information in a useful way.

Requirements: In addition to Python, some knowledge of either GUI programming or Web programming.

Sphinx documentation

Finish converting our documentation from a custom format and set of tools that we maintain (Lore) to the Python community standard - RestructuredText (ReST) as used by In particular, resolve all tickets in the Lore to Sphinx milestone and then help transition the release process and to Sphinx by participating in a release. You'll learn about releasing software, documentation tools, and maybe some data transformation (from HTML to RestructuredText).

Requirements: In addition to knowledge of Python, knowledge of HTML and perhaps ReST would be useful.

Don't break in other locales

Twisted currently has some bugs when used in certain non-English-configuration ("locales"), e.g. French. For example, date formatting might be wrong, or uppercase/lowercase conversion might work unexpectedly. As a first step you'd want to create a custom locale for Linux that was malicious about everything (e.g. lower-casing returns random unexpected bytes, dates are funky, etc.). This would be used to find places where Twisted is making US-centric assumptions, but would actually be a useful project for the Linux community in general. Then, fix resulting bugs in Twisted. Some relevant background material:

Requirements: This is probably easier to do on Linux than on Windows, so some basic familiarity with Linux, and a computer configured to use it, in addition to knowledge of Python.

Tasks Google may not like

  • Finish half-done documentation: Merge existing documentation from elsewhere, e.g. Conch in 60 seconds, or half-finished documentation that is in the tracker (there's the start of an IMAP howto, for example.)
  • For a particular subproject, review and improve existing examples and howtos and add missing documentation. Every example needs a description, e.g. has descriptions but doesn't. Every example should document its purpose, how it is run, and what it should do. Examples should use current coding and documentation standards and shouldn't use deprecated code. Documentation should use current coding and documentation standards in code snippets, and should use the preferred APIs. Some subprojects have very little documentation or examples and simply need more. Audit and update relevant man pages.
  • Coverage: For a particular subproject, go for 100% API documentation and unit test code coverage.
  • Test suite cleanup: overall test suite cleanup, remove deprecations, fix deprecation warnings, get to the bottom of and fix our various recurring Windows errors, fix Windows compiler warnings, fix non-deterministic tests.
  • Finish half-written code, documentation, bug fixes, etc.: We have >200 tickets that at some point had code written and received at least one code review, but for various reasons never made it in. This is a great way to learn because you don't have to start from scratch, and there's a variety of tasks (from minor fixes to documentation to new features) most of which have code reviews as a starting point. See for a list.
  • Python 3: Begin working towards Python 3 support. For a start, fix all the bugs in the Python-3.x milestone and run with no -3 warnings. Then, see how far you can get with actual port.
  • PyPy: Have PyPy be a fully supported platform, with all tests passing.