Viewing profile — hauntsaninja

I don't yet know a better way to do this than using a threshold! I think if you assume perf is normally distributed, you can still get some of the math to work out. But I will need…

Note that "pick the commit with best expected information gain" in git_bayesect isn't optimal even in the no overhead regime. I provide a counterexample in the writeup, which impli…

Yep, you can run bayesect to an arbitrary confidence level. This script in the repo https://github.com/hauntsaninja/git_bayesect/blob/main/scrip... will show you that a) the confid…

That sounds right. `git_bayesect` currently uses `--first-parent`, so I think belden's use case should work, but I haven't tested it much on complicated git histories.

Yes! It will show you the posterior probability as a single commit starts to become more likely. In addition, running `git bayesect status` will show you all posterior probabilitie…

Yay, I had fun with it too! IIUC the way you'd do that right now is just repeatedly recording the individual observations on a single commit, which effectively gives it a probabili…

git bisect works great for tracking down regressions, but relies on the bug presenting deterministically. But what if the bug is non-deterministic? Or worse, your behaviour was alw…

Reasoning effort is denominated in tokens, not time, so no difference beyond slowness at heavy load (I work at OpenAI)

Yes, uv skipping this step is a one time significant hit to start up time. E.g. if you're building a Dockerfile I'd recommend setting `--compile-bytecode` / `UV_COMPILE_BYTECODE`

Unknown has the exact same type system semantics as Any. Unknown is a pyright specific term for inferred Any that is used as the basis for enabling additional diagnostics prohibiti…

I’ve added ecosystem regression checks to every Python type checker and typeshed via https://github.com/hauntsaninja/mypy_primer . This helped a tonne with preventing unintended or…

The conformance test suite is currently mostly focused on “what does an explicit type annotation mean” A shared spec for this is important because if you write a Python library, yo…

Mentioned this in another comment, but the spec conformance suite is not representative of the things users care about (nor is it meant to be). The spec mostly concerns itself with…

Note: while spec conformance is important, I don't recommend using it as the basis for choosing a type checker. It is not representative of the things that most users actually care…

pyright will accept this. mypy should accept this when using --allow-redefinition-new as well

text-davinci-001 is just not GPT-3 in any real sense (I work at OpenAI, I helped build this page and helped train text-davinci-001)

Note that `uvx mypy` may give you inaccurate timings on macOS. The antivirus in macOS goes a little crazy the first time it executes a mypyc compiled program.

We had so many of these issues that we ended up LD_PRELOAD-ing patch getenv / setenv / putenv

Yeah, that's not exactly the problematic situation... but the good news is I improved the Python's error message for this in 3.13. See https://docs.python.org/3/whatsnew/3.13.html#…

You don't need to use pytz, you can use the following on all Python 3: tz_UTC = datetime.timezone.utc

Lean heavier on a mypy config file. Make heavy use of per-module configuration, in particular, setting per-module ignore_errors = true for modules you’re not yet ready to type chec…

In Python 3.11, you can use the "-P" flag or the "PYTHONSAFEPATH" environment variable to avoid adding cwd to sys.path https://docs.python.org/3.11/whatsnew/3.11.html#summary-rele.…

You can use numpy just fine. Unlike Cython, mypyc doesn’t give you a way of accessing numpy’s C API (because you’re basically just writing Python code).