Simon Willison’s Weblog

Mac OS X Leopard: UNIX. Leopard ships with DTrace, and it’s been hooked in to Java, Ruby, Python and Perl.

Posted 11th June 2007 at 11:05 pm

Recent articles

My review of Claude's new Code Interpreter, released under a very confusing name - 9th September 2025
Recreating the Apollo AI adoption rate chart with GPT-5, Python and Pyodide - 9th September 2025
GPT-5 Thinking in ChatGPT (aka Research Goblin) is shockingly good at search - 6th September 2025

dtrace 2 java 89 leopard 14 osx 80 perl 26 python 1188 ruby 72

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