nixpkgs/pkgs/development/python-modules/numexpr/default.nix

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{ lib
, buildPythonPackage
, fetchPypi
, python
, numpy
}:
buildPythonPackage rec {
pname = "numexpr";
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version = "2.6.9";
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src = fetchPypi {
inherit pname version;
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sha256 = "fc218b777cdbb14fa8cff8f28175ee631bacabbdd41ca34e061325b6c44a6fa6";
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};
# Remove existing site.cfg, use the one we built for numpy.
preBuild = ''
rm site.cfg
ln -s ${numpy.cfg} site.cfg
'';
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propagatedBuildInputs = [ numpy ];
# Run the test suite.
# It requires the build path to be in the python search path.
checkPhase = ''
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pushd $out
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${python}/bin/${python.executable} <<EOF
import sys
import numexpr
r = numexpr.test()
if not r.wasSuccessful():
sys.exit(1)
EOF
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popd
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'';
meta = {
description = "Fast numerical array expression evaluator for NumPy";
homepage = "https://github.com/pydata/numexpr";
license = lib.licenses.mit;
};
}