Hello, I'm announcing an experimental, work-in-progress port of Twisted to Python 3. The homepage, where you can find more detailed information, is at https://bitbucket.org/pitrou/t3k First step is to have core functionality (basic infrastructure, the various reactors, transports, etc.) working. This is test-driven, since Twisted has mostly excellent coverage. We are pretty much there. The current status is: The following tests pass: All of twisted/internet/test/* All of twisted/trial/test/* All of twisted/python/test/* Some of twisted/test: including test_amp, test_application, test_banana, test_defer, test_defgen, test_internet, test_jelly, test_log, test_logfile, test_paths, test_pb, test_persisted, test_protocols, test_ssl, test_sslverify, test_tcp, test_threads, test_threadpool, test_twistd, test_udp, test_unix... The following scripts are known to work: trial twistd Feedback and contributions welcome. If you are interested in helping, please go and read the link above, it will give you suggestions. Regards Antoine.