dateutil-rust: Rust port of dateutil/dateutil
============================================

This directory holds the rustsmith Stage-1 mirror of
https://github.com/dateutil/dateutil (rrule, relativedelta, tz, and the
fuzzy/ISO parser, all backed by the Rust `dateutil._dateutil` engine).

* Upstream authors: dateutil contributors
* Upstream license: Apache-2.0 (dual-licensed Apache-2.0/BSD; the engine
  files carry the Apache-2.0 SPDX tag).
* This port: behavior-identical, same public API
  (`dateutil._dateutil` extension module plus the
  `src/dateutil/{rrule,relativedelta,tz/tz,parser/_parser}.py` shims),
  published as the `python-dateutil-rust` distribution on PyPI
  (import name unchanged: `import dateutil`) with reusable core
  crate `dateutil-core` on crates.io.

Provenance: every artifact preserves the upstream license header and this
attribution (provenance gate). The vendored
`src/dateutil/zoneinfo/dateutil-zoneinfo.tar.gz` is the release timezone
database from the python-dateutil 2.9.0.post0 sdist (package_data).
