I was recently going through the Statistical Rethinking course by Richard McElreath and I can only recommend it! You can find my exercises and book problem solutions at statistical-rethinking
mkopen - Open data hub web application with an accent on persistence. A deployment for different sources of open data in Macedonia can be found on mkopen.org
txplaya - Audio web server with a http api. It also has a desktop gui.
txpgpool - A simple connection pooling for postgresql in Twisted.
sparklit - Natural Language Processing with Python and Spark
redisbahn - Web socket server on top of Twisted, Autobahn and Redis. (proof of concept)
nlmk - Natural Language processing library for Macedonian (MK)