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{
lib,
python,
buildPythonPackage,
fetchFromGitHub,
hatchling,
hatch-autorun,
pytestCheckHook,
runCommand,
}:
buildPythonPackage rec {
pname = "auto-lazy-imports"; # matches pypi
version = "0.4.2";
pyproject = true;
src = fetchFromGitHub {
owner = "hmiladhia";
repo = "lazyimports";
tag = "v${version}";
hash = "sha256-DPk/fupBuYmm7Xy5+qFkqeRoglflECuX8A0C2ncARhI=";
};
build-system = [
hatchling
hatch-autorun
];
pythonImportsCheck = [
"lazyimports"
];
nativeCheckInputs = [
pytestCheckHook
];
preInstallCheck = ''
if [[ -f "$out/${python.sitePackages}"/hatch_autorun_auto_lazy_imports.pth ]]; then
echo >&2 "Found hatch_autorun_auto_lazy_imports.pth in site-packages"
else
echo >&2 "ERROR: no hatch_autorun_auto_lazy_imports.pth file found in site-packages, please re-check derivation assumptions"
false
fi
'';
preCheck = ''
# Makes python load the .pth file in site-packages
export NIX_PYTHONPATH="$out/${python.sitePackages}''${NIX_PYTHONPATH:+:"$NIX_PYTHONPATH"}"
'';
# check if NIX_PYTHONPATH is properly set in downstream environments
passthru.tests = {
check-autorun-pyenv =
runCommand "${pname}-check-autorun-pyenv"
{
nativeBuildInputs = [
(python.withPackages (ps: [
ps.auto-lazy-imports
ps.pytest
]))
];
}
''
pytest ${src}/tests && touch $out
'';
# TODO: this requires user to set NIX_PYTHONPATH
# check-autorun-env =
# runCommand "${pname}-check-autorun-env"
# {
# nativeBuildInputs = [
# python
# python.pkgs.auto-lazy-imports
# python.pkgs.pytest
# ];
# }
# ''
# pytest ${src}/tests && touch $out
# '';
};
meta = {
description = "Enable lazy imports using native python syntax";
homepage = "https://github.com/hmiladhia/lazyimports";
license = lib.licenses.mit;
maintainers = with lib.maintainers; [ pbsds ];
};
}
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