fix(build): use dict-style license for setuptools<77 compatibility

fruch · dkropachev · commit 0842348d647b · 2026-05-04T15:11:28.000-04:00
The PEP 639 SPDX string format (license = "Apache-2.0") requires setuptools>=77. Downstream projects that constrain setuptools to <75 fail to build from source with "project.license must be valid exactly by one definition (2 matches found)". Switch to the dict-style format which is compatible with all setuptools versions >=65. Fixes #840
diff --git a/pyproject.toml b/pyproject.toml
@@ -21,7 +21,7 @@ classifiers = [
 ]
 dependencies = ['geomet>=1.1', 'pyyaml > 5.0']
 dynamic = ["version", "readme"]
-license = "Apache-2.0"
+license = {text = "Apache-2.0"}
 requires-python = ">=3.9"
 
 [project.urls]

Original file line number	Diff line number	Diff line change
`@@ -21,7 +21,7 @@ classifiers = [`
`21`	`21`	`]`
`22`	`22`	`dependencies = ['geomet>=1.1', 'pyyaml > 5.0']`
`23`	`23`	`dynamic = ["version", "readme"]`
`24`		`-license = "Apache-2.0"`
	`24`	`+license = {text = "Apache-2.0"}`
`25`	`25`	`requires-python = ">=3.9"`
`26`	`26`
`27`	`27`	`[project.urls]`