These are the 6 blog posts written on December 20 of any year. (Nearby: December 19 and December 21.)
2018:
A thing I learned about Python recursion #python
2014:
REST API gotcha, and webhookdb
2012:
Implementing rpartition #python
2011:
Happy Hanukkah
2010:
Made by Joel #crafts #toys
2007:
Quick links: wrapper, design, later, launchy #design #quick-links #tools