Use PEP 639 license-files in pyproject.toml

[fecet]

Summary

• Replace deprecated license = { file = "LICENSE" } with license-files = ["LICENSE"] (PEP 639)

Motivation

PEP 639 deprecates the table-based license field. The old { file = "..." } format causes issues with tools that expect machine-readable SPDX identifiers (e.g. pixi-build-python).

This PR only migrates the file reference syntax. The SPDX license identifier is left for maintainers to decide if/when needed.

Test plan

• No functional change, only metadata format update

[chatgpt-codex-connector]

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📝 Walkthrough

Walkthrough

In pyproject.toml under the [project] section the license declaration was changed from license = { file = "LICENSE" } to license-files = ["LICENSE"]. No other project metadata or structure was modified.

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: updating the license field in pyproject.toml to use PEP 639's license-files format instead of the deprecated table-based syntax.
Description check	✅ Passed	The description is directly related to the changeset, explaining the migration from deprecated license syntax to PEP 639 format, including motivation and test plan.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@pyproject.toml`:
- Line 5: Update the license identifier in pyproject.toml from "GPL-3.0-only" to
"GPL-3.0-or-later" so it matches the source headers (e.g., files
comfy/controlnet.py, comfy/supported_models_base.py, comfy/utils.py) that state
"either version 3 of the License, or (at your option) any later version"; locate
the license = "..." entry in pyproject.toml and change its value accordingly.
- Around line 5-6: Update the SPDX identifier and add a build-system
requirement: change the project license entry currently set as license =
"GPL-3.0-only" to license = "GPL-3.0-or-later" (the existing license-files =
["LICENSE"] can remain), and add a [build-system] table that pins setuptools to
at least 77 (e.g., requires including "setuptools>=77" and a wheel entry, and
set build-backend to setuptools.build_meta) so PEP 639 features like
project.license and project.license-files are supported.

[comfy-pr-bot]

Test Evidence Check

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