The History of Python: Adding Support for User-defined Classes. Guido designed the run-time representation first, and tried to design the syntax to include as few new parsing concepts as possible. The origins of explicit self are also explained.
Recent articles
- Highlights from my appearance on the Data Renegades podcast with CL Kao and Dori Wilson - 26th November 2025
- Claude Opus 4.5, and why evaluating new LLMs is increasingly difficult - 24th November 2025
- sqlite-utils 4.0a1 has several (minor) backwards incompatible changes - 24th November 2025