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{ lib
, buildPythonPackage
, cffi
, dos2unix
, fetchPypi
, matplotlib
, networkx
, numpy
, pytestCheckHook
, pythonOlder
, gurobi
, gurobipy
# Enable support for the commercial Gurobi solver (requires a license)
, gurobiSupport ? false
# If Gurobi has already been installed outside of the Nix store, specify its
# installation directory here
, gurobiHome ? null
}:
buildPythonPackage rec {
pname = "mip";
version = "1.14.2";
disabled = pythonOlder "3.7";
format = "pyproject";
src = fetchPypi {
inherit pname version;
sha256 = "sha256-wr4gXSh456heG5nsaEi2yo7LMre2Nd6QbTm0dcDCX1k=";
};
checkInputs = [ matplotlib networkx numpy pytestCheckHook ];
nativeBuildInputs = [ dos2unix ];
propagatedBuildInputs = [
cffi
] ++ lib.optionals gurobiSupport ([
gurobipy
] ++ lib.optional (builtins.isNull gurobiHome) gurobi);
# Source files have CRLF terminators, which make patch error out when supplied
# with diffs made on *nix machines
prePatch = ''
find . -type f -exec ${dos2unix}/bin/dos2unix {} \;
'';
patches = [
# Some tests try to be smart and dynamically construct a path to their test
# inputs. Unfortunately, since the test phase is run after installation,
# those paths point to the Nix store, which no longer contains the test
# data. This patch hardcodes the data path to point to the source directory.
./test-data-path.patch
];
postPatch = ''
# Allow cffi versions with a different patch level to be used
substituteInPlace pyproject.toml --replace "cffi==1.15.0" "cffi==1.15.*"
'';
# Make MIP use the Gurobi solver, if configured to do so
makeWrapperArgs = lib.optional gurobiSupport
"--set GUROBI_HOME ${if builtins.isNull gurobiHome then gurobi.outPath else gurobiHome}";
# Tests that rely on Gurobi are activated only when Gurobi support is enabled
disabledTests = lib.optional (!gurobiSupport) "gurobi";
passthru.optional-dependencies = {
inherit gurobipy numpy;
};
meta = with lib; {
homepage = "http://python-mip.com/";
description = "A collection of Python tools for the modeling and solution of Mixed-Integer Linear programs (MIPs)";
downloadPage = "https://github.com/coin-or/python-mip/releases";
changelog = "https://github.com/coin-or/python-mip/releases/tag/${version}";
license = licenses.epl20;
maintainers = with maintainers; [ nessdoor ];
};
}
|