pyproject.toml: Add setuptools to deps

[schwehr]

 Downloaded gradio
  × Failed to download and build `keplergl==0.3.7`
  ├─▶ Failed to install requirements from `build-system.requires`
  ├─▶ Failed to build `pyarrow==16.0.0`
  ├─▶ The build backend returned an error
  ╰─▶ Call to `setuptools.build_meta:__legacy__.build_wheel` failed (exit
      status: 1)
      [stderr]
      Traceback (most recent call last):
        File "<string>", line 14, in <module>
          requires = get_requires_for_build({})
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmp1nGktH/lib/python3.13/site-packages/setuptools/build_meta.py",
      line 333, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
                 ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmp1nGktH/lib/python3.13/site-packages/setuptools/build_meta.py",
      line 301, in _get_build_requires
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmp1nGktH/lib/python3.13/site-packages/setuptools/build_meta.py",
      line 520, in run_setup
          super().run_setup(setup_script=setup_script)
          ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmp1nGktH/lib/python3.13/site-packages/setuptools/build_meta.py",
      line 317, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 34, in <module>
      ModuleNotFoundError: No module named 'pkg_resources'
      hint: This error likely indicates that `pyarrow@16.0.0` depends on
      `pkg_resources`, but doesn't declare it as a build dependency. If
      `pyarrow` is a first-party package, consider adding `pkg_resources`
      to its `build-system.requires`. Otherwise, either add it to your
      `pyproject.toml` under:
      [tool.uv.extra-build-dependencies]

[Copilot]

Pull request overview

This PR attempts to fix a build failure when installing the keplergl package (a dependency in the "backends" optional dependency group) by adding setuptools to uv's extra build dependencies. The error occurs because pyarrow==16.0.0 (a transitive dependency of keplergl) requires pkg_resources during its build process, which is provided by setuptools.

Changes:

• Added [tool.uv.extra-build-dependencies] section to configure additional build dependencies for packages built by uv

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

The configuration structure for tool.uv.extra-build-dependencies appears to be incorrect. According to uv's documentation and the error message in the PR description, extra-build-dependencies should map package names to their required build dependencies, not use feature/extra names like "backends" as keys.

The correct format should be:

[tool.uv.extra-build-dependencies]
keplergl = ["setuptools"]

or

[tool.uv.extra-build-dependencies]
pyarrow = ["setuptools"]

Since the error occurs when building pyarrow==16.0.0 (a dependency of keplergl), you should specify which package needs setuptools as a build dependency. The error message indicates pyarrow's build process is missing pkg_resources (from setuptools), so it would be most accurate to specify pyarrow as the key.

Suggested change

	backends = ["setuptools"]
	pyarrow = ["setuptools"]

[jdbcode]

Kurt, I'm not familiar with UV. I had Copilot review. Does its conclusion make sense to you? I assume after you made your change the build was successful. So, I'm not sure that its recommendation is correct/required.