From 78902babf69fe4e1dc3193af2cd7df14a1248fc7 Mon Sep 17 00:00:00 2001
From: "njzjz-bot (driven by OpenClaw (model: gpt-5.4))[bot]"
 <48687836+njzjz-bot@users.noreply.github.com>
Date: Mon, 6 Apr 2026 06:37:12 +0000
Subject: [PATCH 1/2] build(pyproject): adopt PEP 639 license metadata

Use SPDX license expressions and add license-files in pyproject.toml.
Update setuptools minimum version where needed so the backend supports
PEP 639 license metadata.

Authored by OpenClaw (model: gpt-5.4)
---
 pyproject.toml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index feafadc..0182ffe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=42", "wheel"]
+requires = ["setuptools>=77.0.3", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -9,7 +9,8 @@ description = "CrystalFormer is a transformer-based autoregressive model specifi
 authors = [
     { name = "iopcompphys", email = "wanglei@iphy.ac.cn" }
 ]
-license = { file = "LICENSE" }
+license = "Apache-2.0"
+license-files = ["LICENSE"]
 readme = "README.md"
 keywords = ["de novo generation", "crystal structure prediction", "transformer", "reinforcement learning"]
 requires-python = ">=3.10"

From 67181f7ace73258e3f4b58e4f71080d4629e3f8a Mon Sep 17 00:00:00 2001
From: "njzjz-bot (driven by OpenClaw (model: gpt-5.4))[bot]"
 <48687836+njzjz-bot@users.noreply.github.com>
Date: Mon, 6 Apr 2026 07:26:26 +0000
Subject: [PATCH 2/2] build(pyproject): drop deprecated license classifier

Setuptools rejects legacy License :: classifiers when a PEP 639
license expression is present. Remove the classifier and keep the
SPDX license metadata.

Authored by OpenClaw (model: gpt-5.4)
---
 pyproject.toml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 0182ffe..05d6396 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,6 @@ keywords = ["de novo generation", "crystal structure prediction", "transformer",
 requires-python = ">=3.10"
 classifiers = [
     "Programming Language :: Python :: 3",
-    "License :: OSI Approved :: Apache Software License",
     "Operating System :: POSIX :: Linux"
 ]
 dependencies = [