HNHacker News
TopNewBestAskShowJobs

dnouri

93 karma · joined February 11, 2012

http://danielnouri.org
submissionscomments
dnouri··on Pi – A minimal terminal coding harness
Oh that sounds neat. I'll need to check out your extension!
dnouri··on Pi – A minimal terminal coding harness
Nice! I'm curious to hear how you're mapping `read` and `write` to Emacs buffers. Does that mean those commands open those files in Emacs and read and write them there?

Let me also drop a link to the Pi Emacs mode here for anyone who wants to check it out: https://github.com/dnouri/pi-coding-agent -- or use: M-x package-install pi-coding-agent

We've been building some fun integrations in there like having RET on the output of `read`, `write`, `edit` tool calls open the corresponding file and location at point in an Emacs buffer. Parity with Pi's fantastic session and tree browsing is hopefully landing soon, too. Also: Magit :-)

dnouri··on Modern Python CI with Coverage in 2025
Interesting question. However, I haven't worked with those kinds of tests before.

It looks like there's two pytest plugins at least to support you with that:

- Mutatest: Python mutation testing: https://mutatest.readthedocs.io/

- Mutagen: https://github.com/timpaquatte/pytest-mutagen

Let me know how it goes.

dnouri··on Modern Python CI with Coverage in 2025
I covered a gap by blogging about: Modern Python CI with Coverage in #2025

Let me know in the comments if you think it's useful.

From the table of contents:

    Our toolchain
        py-cov-action: GitHub-native coverage
            The two-workflow pattern for fork PRs
        pytest-xdist: Parallel testing by default
        uv: Fast package management
    Six critical gotchas
        Gotcha #1: Using coverage run -m pytest with xdist
        Gotcha #2: Missing relative_files = true
        Gotcha #3: Hidden files excluded from artifacts
        Gotcha #4: Fork PRs can't post comments
        Gotcha #5: Missing pytest-cov plugin
        Gotcha #6: E2E tests with subprocesses contribute 0% coverage
    Complete working example
        .github/workflows/ci.yml
        .github/workflows/post-coverage-comment.yml
        pyproject.toml configuration
    Verifying your setup
        Check relative paths
        Verify artifact upload
        Test fork PR comments
        What success looks like
    Migration notes
        From Codecov/Coveralls
        From pip to uv
    Next steps
    Resources
dnouri··on Using deep learning to listen for whales
An interesting idea. Yes, you can usually use a convnet with any number of channels per pixel.
dnouri··on Using deep learning to listen for whales
The nice thing about these convolutional neural nets is that they're not convoluted at all. ;-) It's basically feed the raw data, in this case spectrograms. Traditional approaches in this field are usually much more convoluted, because they involve a complex feature extraction part. Which tends to be specific to a certain species.
dnouri··on Using deep learning to listen for whales
And third-place winner of the second whale challenge :-) https://www.kaggle.com/c/the-icml-2013-whale-challenge-right...

This second challenge actually featured a different dataset with different hydrophones used etc. But even without retraining (which was rather trivial to do at that point; the hard work of finding the right hyper parameters had already been done), I would have still scored well above 90%. And I think Nick Kridler reported the same.

So overfitting yes, but not too much considering there was a different sensor.