Simon Willison’s Weblog

Thread Synchronization Mechanisms in Python. Locks, RLocks, Semaphores, Events and Conditions as explained by Fredrik Lundh.

Posted 29th July 2007 at 9:32 pm

Recent articles

Two new Showboat tools: Chartroom and datasette-showboat - 17th February 2026
Deep Blue - 15th February 2026
The evolution of OpenAI's mission statement - 13th February 2026

conditions 1 effbot 4 events 108 fredrik-lundh 7 locks 1 python 1228 rlocks 1 semaphores 1 threads 18 tutorial 18

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