configuration error: project.license must be valid exactly by one definition (2 matches found) #10588
Description
What happened?
Building xarray 2025.7.1 from source with python 3.12 results in the following PEP-0621 violation:
configuration error: `project.license` must be valid exactly by one definition (2 matches found):
- keys:
'file': {type: string}
required: ['file']
- keys:
'text': {type: string}
required: ['text']
DESCRIPTION:
`Project license <https://peps.python.org/pep-0621/#license>`_.
GIVEN VALUE:
"Apache-2.0"
OFFENDING RULE: 'oneOf'
DEFINITION:
{
"oneOf": [
{
"properties": {
"file": {
"type": "string",
"$$description": [
"Relative path to the file (UTF-8) which contains the license for the",
"project."
]
}
},
"required": [
"file"
]
},
{
"properties": {
"text": {
"type": "string",
"$$description": [
"The license of the project whose meaning is that of the",
"`License field from the core metadata",
"<https://packaging.python.org/specifications/core-metadata/#license>`_."
]
}
},
"required": [
"text"
]
}
]
}
What did you expect to happen?
No response
Minimal Complete Verifiable Example
MVCE confirmation
- Minimal example — the example is as focused as reasonably possible to demonstrate the underlying issue in xarray.
- Complete example — the example is self-contained, including all data and the text of any traceback.
- Verifiable example — the example copy & pastes into an IPython prompt or Binder notebook, returning the result.
- New issue — a search of GitHub Issues suggests this is not a duplicate.
- Recent environment — the issue occurs with the latest version of xarray and its dependencies.
Relevant log output
Anything else we need to know?
No response
