nixpkgs/pkgs/development/python-modules/pymatting/default.nix
2026-03-07 20:05:17 +00:00

86 lines
1.7 KiB
Nix

{
lib,
buildPythonPackage,
fetchFromGitHub,
# build-system
setuptools,
# dependencies
numba,
numpy,
pillow,
scipy,
# cuda-only
cupy,
pyopencl,
# tests
pocl,
pytestCheckHook,
writableTmpDirAsHomeHook,
config,
cudaSupport ? config.cudaSupport,
}:
buildPythonPackage (finalAttrs: {
pname = "pymatting";
version = "1.1.15";
pyproject = true;
src = fetchFromGitHub {
owner = "pymatting";
repo = "pymatting";
tag = "v${finalAttrs.version}";
hash = "sha256-rcatlQE+YgppY//ZgGY9jO5KI0ED30fLlqW9N+xRNqk=";
};
build-system = [ setuptools ];
dependencies = [
numba
numpy
pillow
scipy
]
++ lib.optionals cudaSupport [
cupy
pyopencl
];
pythonImportsCheck = [ "pymatting" ];
nativeCheckInputs = [
pytestCheckHook
]
++ lib.optionals cudaSupport [
# Provides a CPU-based OpenCL ICD so that pyopencl's module-level
# cl.create_some_context() succeeds without GPU hardware.
pocl
# pocl needs a writable $HOME for its kernel cache directory.
writableTmpDirAsHomeHook
];
disabledTests = [
# no access to input data set
# see: https://github.com/pymatting/pymatting/blob/master/tests/download_images.py
"test_alpha"
"test_laplacians"
"test_preconditioners"
"test_lkm"
];
disabledTestPaths = lib.optionals cudaSupport [
# Requires a CUDA driver for cupy GPU operations
"tests/test_foreground.py"
];
meta = {
description = "Python library for alpha matting";
homepage = "https://github.com/pymatting/pymatting";
changelog = "https://github.com/pymatting/pymatting/blob/${finalAttrs.src.tag}/CHANGELOG.md";
license = lib.licenses.mit;
maintainers = [ ];
};
})