Writing An Hadoop MapReduce Program In Python. Hadoop (the open source map/reduce framework) can interact with any program that reads from stdin and outputs on stdout—so it’s trivial to drop in Python scripts for the map and reduce steps.
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