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This is an announcement for zizmor, a new tool for finding security issues in GitHub Actions setups. You can run it on one or more workflow definitions1, and it’ll emit cargo-style diagnostics, SARIF, or JSON as you please. Support for custom actions (e.g. action.yml within actions/checkout or similar) is planned, but not implemented yet. ↩

Another Rust crate announcement: this time I’m announcing yamlpath, a small library for format-preserving YAML feature extraction.

Mini-post.

TL;DR: You can use Pydantic’s support for tagged unions to approximate sum types in Python; go right to Sum types in Python (and onwards) to see how it’s done.

This short(-ish) post is a successor to 2022’s a most vexing parse, but for Python packaging. I discovered it the other day while doing it what I normally do: mucking through the guts of Python packaging.