Simon Willison’s Weblog

29th June 2020

TIL Writing tests for the ASGI lifespan protocol with HTTPX — Uvicorn silently ignores exceptions that occur during startup against the ASGI lifespan protocol - see [starlette/issues/486](https://github.com/encode/starlette/issues/486).

Posted 29th June 2020 at 4:13 pm

Recent articles

GPT-5.4 mini and GPT-5.4 nano, which can describe 76,000 photos for $52 - 17th March 2026
My fireside chat about agentic engineering at the Pragmatic Summit - 14th March 2026
Perhaps not Boring Technology after all - 9th March 2026

This is a beat by Simon Willison, posted on 29th June 2020.

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe