From 5c2058fbe5625bf19b0ad2d7ee017a8148927f0e Mon Sep 17 00:00:00 2001
From: Dimitri Papadopoulos
 <3234522+DimitriPapadopoulos@users.noreply.github.com>
Date: Thu, 31 Jul 2025 12:39:57 +0200
Subject: [PATCH] PEP 639 license information
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1. Declare licenses using keys `license` and `license-files`, as per PEP 639:
   * license:       SPDX license expression
   * license-files: list of license file glob patterns
2. Keep the Trove classifier in an attempt to remain compatible with tools
that do not support PEP 639 yet, such as pip-licenses. Hopefully the build
system will not complain about the redundant/obsolete classifier.

In theory, maturin ≥ 1.9 supports PEP 639, which means the proper licensing
metadata should be included in packages:
	https://www.maturin.rs/changelog.html

In practice, maturin < 1.9.3 does not take license-files into account and
the LICENSE file is therefore missing from packages.
---
 pyproject.toml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 438520fda7..c9cff39664 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["maturin>=1.9,<2.0"]
+requires = ["maturin>=1.9.3,<2.0"]
 build-backend = "maturin"
 
 [project]
@@ -9,7 +9,8 @@ description = "An extremely fast Python linter and code formatter, written in Ru
 authors = [{ name = "Astral Software Inc.", email = "hey@astral.sh" }]
 readme = "README.md"
 requires-python = ">=3.7"
-license = { file = "LICENSE" }
+license = "MIT"
+license-files = ["LICENSE"]
 keywords = [
     "automation",
     "flake8",