Simon Willison’s Weblog

The joy of pdb.set_trace(). I use nosetests --pdb-failures as my main entrypoint for Python debugging—it starts the debugger at the first failing test.

Posted 25th April 2007 at 11:37 pm

Recent articles

JustHTML is a fascinating example of vibe engineering in action - 14th December 2025
OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025
GPT-5.2 - 11th December 2025

debugging 35 nose 5 pdb 6 python 1213 testing 65

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