[Copilot]

pyproject.toml lacked a [build-system] table, leaving packaging tools without an explicit build backend.

Changes

• pyproject.toml: Added [build-system] section declaring setuptools as the build backend

[build-system]
requires = ["setuptools >= 78.1.1"]
build-backend = "setuptools.build_meta"

Note: Minimum pinned to 78.1.1 (not 77.0.3 as suggested) to avoid a path-traversal/arbitrary-file-write vulnerability present in setuptools < 78.1.1.

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[zimeg]

@srtaalej Might this fix issues with create for you?

$ slack create --template slack-samples/bolt-python-assistant-template --branch copilot/add-setuptools-to-build-system

[mwbrooks]

note: pip falls back to setuptools when [build-system] is missing and our other Python templates follow the same pattern. For now, I feel we should close this until we plan to rollout [build-system] to all sample apps.