pyproject.toml

branching: merge with stable

This recreates `37b52b938579` right as a `hg branch --rev 5b186ba40001` screwed
up the content.

[build-system]
requires = ["setuptools", "wheel"]

[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true