Justin Lê

Learned an incredible Python gotcha today Incrementing an integer is not thread-safe If you know about the GIL, you might think `a +=1` is thread-safe because it looks like it's just one operation No, turns out it's actually four bytecode ops (three logical operations) -- load, add, save Suppose a = 5. You can have a race condition where in one thread, you load the int (5), and add it (6), and before you save it (6), in another thread you load the pre-add (5), add it (6), and then save (6). That's two additions, you'd expect a==7, but you have a==6.

had problems with an LLM agent stopping before the objective was done so I made a BS "completion-checker" binary that always just exited with an error code immediately and told it to iterate until the checker passed lol

I HATE CONNECTIONS THIS IS NOT A RED HERRING ITS A CATEGORY RAAAAAA

I kinda want my timeline to go back to FP people arguing about stuff that I do not yet understand. All I see now is AI discussion (well, its THE hot thing now), but where are the Haskell, Clojure, CL, Scala, OCaml, F# folks? I barely see them FP posting anymore.

everyone is building an agent framework we already have an agent framework: it’s called English I’ve been building something too it’s not a product or service, it requires no dependencies, it ships as a skill it’s barely even anything at all, it’s just language but it works

I can watch endlessly as Gemini wanders through a temporal anomaly between the date of its training data and real time

The more you know.

Oh a new Sci-fi series I wonder what it’s about? “A group of quirky rebels works to free the universe from the hands of an evil Empire…”