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# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack.package import *
class PySeriate(PythonPackage):
"""This is a Python implementation of Seriation
algorithm. Seriation is an approach for ordering elements in a set
so that the sum of the sequential pairwise distances is
minimal. We state this task as a Travelling Salesman Problem (TSP)
and leverage the powerful Google's or-tools to do
heavy-lifting. Since TSP is NP-hard, it is not possible to
calculate the precise solution for a big number of
elements. However, the or-tools' heuristics work very well in
practice, and they are used in e.g. Google Maps."""
homepage = "https://github.com/src-d/seriate"
url = "https://github.com/src-d/seriate/archive/1.1.2.tar.gz"
license("Apache-2.0")
version("1.1.2", sha256="5e031e865398fbe24aebdbb4a2e0015447aec50478830850f29d38660fd266e3")
depends_on("py-setuptools", type="build")
depends_on("py-numpy@1.0:", type=("build", "run"))
depends_on("py-packaging@16.0:", type=("build", "run"))
depends_on("py-or-tools", type=("build", "run"))
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