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{
lib,
buildPythonPackage,
fetchPypi,
stdenv,
# build-system
setuptools,
# dependencies
importlib-metadata,
# optional-dependencies
lxml,
cairosvg,
# tests
pyquery,
pytestCheckHook,
}:
buildPythonPackage rec {
pname = "pygal";
version = "3.0.5";
pyproject = true;
src = fetchPypi {
inherit pname version;
hash = "sha256-wKDzTlvBwBl1wr+4NCrVIeKTrULlJWmd0AxNelLBS3E=";
};
postPatch = ''
substituteInPlace setup.py \
--replace-fail pytest-runner ""
'';
build-system = [ setuptools ];
dependencies = [ importlib-metadata ];
optional-dependencies = {
lxml = [ lxml ];
png = [ cairosvg ];
};
nativeCheckInputs = [
pyquery
pytestCheckHook
]
++ lib.concatAttrValues optional-dependencies;
preCheck = ''
# necessary on darwin to pass the testsuite
export LANG=en_US.UTF-8
'';
# Cairo tries to load system fonts by default.
# It's surfaced as a Cairo "out of memory" error in tests.
__impureHostDeps = [ "/System/Library/Fonts" ];
postCheck = ''
export LANG=${if stdenv.hostPlatform.isDarwin then "en_US.UTF-8" else "C.UTF-8"}
'';
meta = {
description = "Module for dynamic SVG charting";
homepage = "http://www.pygal.org";
changelog = "https://github.com/Kozea/pygal/blob/${version}/docs/changelog.rst";
downloadPage = "https://github.com/Kozea/pygal";
license = lib.licenses.lgpl3Plus;
maintainers = [ ];
mainProgram = "pygal_gen.py";
};
}
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