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{ stdenv
, buildPythonPackage
, python
, fetchFromGitHub
, fetchpatch
, cython ? null
, numpy ? null
}:
buildPythonPackage {
pname = "purepng";
version = "0.2.0";
src = fetchFromGitHub {
owner = "Scondo";
repo = "purepng";
rev = "449aa00e97a8d7b8a200eb9048056d4da600a345";
sha256 = "105p7sxn2f21icfnqpah69mnd74r31szj330swbpz53k7gr6nlsv";
};
patches = [
(fetchpatch {
name = "fix-py37-stopiteration-in-generators.patch";
url = "https://github.com/Scondo/purepng/pull/28/commits/62d71dfc2be9ffdc4b3e5f642af0281a8ce8f946.patch";
sha256 = "1ag0pji3p012hmj8kadcd0vydv9702188c0isizsi964qcl4va6m";
})
];
patchFlags = [ "-p1" "-d" "code" ];
# cython is optional - if not supplied, the "pure python" implementation will be used
nativeBuildInputs = [ cython ];
# numpy is optional - if not supplied, tests simply have less coverage
checkInputs = [ numpy ];
# checkPhase begins by deleting source dir to force test execution against installed version
checkPhase = ''
rm -r code/png
${python.interpreter} code/test_png.py
'';
meta = with stdenv.lib; {
description = "Pure Python library for PNG image encoding/decoding";
homepage = https://github.com/scondo/purepng;
license = licenses.mit;
maintainers = with maintainers; [ ris ];
};
}
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