pyproject.toml

[build-system]
# These are strictly build requirements. Runtime requirements are listed in
# INSTALL_REQUIRES in setup.py
requires = [
    "setuptools>=59.2.0",
    "cython>=0.29.26,<3",  # Sync with CYTHON_MIN_VER in setup
    # Workaround for oldest supported numpy using 1.21.6, but SciPy 1.9.2+ requiring 1.22.3+
    "oldest-supported-numpy; python_version!='3.10' or platform_system!='Windows' or platform_python_implementation=='PyPy'",
    "numpy>=1.22.3,<2; python_version=='3.10' and platform_system=='Windows' and platform_python_implementation != 'PyPy'",
    "numpy<2; python_version>='3.12'",
    "scipy>=1.4",
    "setuptools_scm[toml]>=7,<8"
]
build-backend = "setuptools.build_meta"

[tool.setuptools_scm]
write_to = "statsmodels/_version.py"