pyproject.toml

[build-system]
# Minimum requirements for the build system to execute.
requires = [
    # TODO: Remove the specifier once setuptools#2849 is resolved.
    "setuptools<58.5",
    "wheel",
    "Cython>=0.28.5",

    # use oldest-supported-numpy which provides the oldest numpy version with
    # wheels on PyPI
    #
    # see: https://github.com/scipy/oldest-supported-numpy/blob/master/setup.cfg
    "oldest-supported-numpy; python_version!='3.7' or platform_machine=='aarch64' or platform_system=='AIX' or platform_python_implementation == 'PyPy'",

    # Override oldest-supported-numpy setting because pandas 0.25.0 requires 1.14.6
    "numpy==1.14.6; python_version=='3.7' and platform_machine!='aarch64' and platform_system!='AIX' and platform_python_implementation != 'PyPy'",

    "scipy>=1.1.0",
]

[tool.black]
line-length = 88
target_version = ['py37', 'py38', 'py39']
experimental_string_processing = true
exclude = '''
/(
    \.eggs         # exclude a few common directories in the
  | \.git          # root of the project
  | \.mypy_cache
  | \.vscode
  | build
  | dist
  | doc/tutorial
  | doc/_build
  | doc/auto_examples
  | sklearn/externals
  | asv_benchmarks/env
)/
'''