Add py-cvxopt package (#7527)

* Add py-cvxopt package

* Flake8 fixes

var/spack/repos/builtin/packages/py-cvxopt/package.py

@@ -0,0 +1,143 @@
+##############################################################################
+# Copyright (c) 2013-2017, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/spack/spack
+# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class PyCvxopt(PythonPackage):
+    """CVXOPT is a free software package for convex optimization based on the
+    Python programming language."""
+
+    homepage = "http://cvxopt.org/"
+    url      = "https://pypi.io/packages/source/c/cvxopt/cvxopt-1.1.9.tar.gz"
+
+    import_modules = ['cvxopt']
+
+    version('1.1.9', 'a56e7b23d76c2b5aaf3bea2a7c245ea7')
+
+    variant('gsl',   default=False, description='Use GSL random number generators for constructing random matrices')
+    variant('fftw',  default=False, description='Install the cvxopt.fftw interface to FFTW')
+    variant('glpk',  default=False, description='Enable support for the linear programming solver GLPK')
+    # variant('mosek', default=False, description='Enable support for the linear, second-order cone, and quadratic programming solvers in MOSEK')  # noqa: flake8
+    variant('dsdp',  default=False, description='Enable support for the semidefinite programming solver DSDP')
+
+    # Required dependencies
+    depends_on('python@2.7:')
+    depends_on('py-setuptools', type='build')
+    depends_on('blas')
+    depends_on('lapack')
+    depends_on('suite-sparse')
+
+    # Optional dependencies
+    depends_on('gsl',       when='+gsl')
+    depends_on('fftw',      when='+fftw')
+    depends_on('glpk',      when='+glpk')
+    # depends_on('mosek@8:',  when='+mosek')
+    depends_on('dsdp@5.8:', when='+dsdp')
+
+    def setup_environment(self, spack_env, run_env):
+        spec = self.spec
+
+        # BLAS/LAPACK Libraries
+
+        # Default names of BLAS and LAPACK libraries
+        spack_env.set('CVXOPT_BLAS_LIB', ';'.join(spec['blas'].libs.names))
+        spack_env.set('CVXOPT_LAPACK_LIB', ';'.join(spec['lapack'].libs.names))
+
+        # Directory containing BLAS and LAPACK libraries
+        spack_env.set('CVXOPT_BLAS_LIB_DIR', spec['blas'].libs.directories[0])
+
+        # SuiteSparse Libraries
+
+        # Directory containing SuiteSparse libraries
+        spack_env.set('CVXOPT_SUITESPARSE_LIB_DIR',
+                      spec['suite-sparse'].libs.directories[0])
+
+        # Directory containing SuiteSparse header files
+        spack_env.set('CVXOPT_SUITESPARSE_INC_DIR',
+                      spec['suite-sparse'].headers.directories[0])
+
+        # GSL Libraries
+
+        if '+gsl' in spec:
+            spack_env.set('CVXOPT_BUILD_GSL', 1)
+
+            # Directory containing libgsl
+            spack_env.set('CVXOPT_GSL_LIB_DIR',
+                          spec['gsl'].libs.directories[0])
+
+            # Directory containing the GSL header files
+            spack_env.set('CVXOPT_GSL_INC_DIR',
+                          spec['gsl'].headers.directories[0])
+        else:
+            spack_env.set('CVXOPT_BUILD_GSL', 0)
+
+        # FFTW Libraries
+
+        if '+fftw' in spec:
+            spack_env.set('CVXOPT_BUILD_FFTW', 1)
+
+            # Directory containing libfftw3
+            spack_env.set('CVXOPT_FFTW_LIB_DIR',
+                          spec['fftw'].libs.directories[0])
+
+            # Directory containing fftw.h
+            spack_env.set('CVXOPT_FFTW_INC_DIR',
+                          spec['fftw'].headers.directories[0])
+        else:
+            spack_env.set('CVXOPT_BUILD_FFTW', 0)
+
+        # GLPK Libraries
+
+        if '+glpk' in spec:
+            spack_env.set('CVXOPT_BUILD_GLPK', 1)
+
+            # Directory containing libglpk
+            spack_env.set('CVXOPT_GLPK_LIB_DIR',
+                          spec['glpk'].libs.directories[0])
+
+            # Directory containing glpk.h
+            spack_env.set('CVXOPT_GLPK_INC_DIR',
+                          spec['glpk'].headers.directories[0])
+        else:
+            spack_env.set('CVXOPT_BUILD_GLPK', 0)
+
+        # DSDP Libraries
+
+        if '+dsdp' in spec:
+            spack_env.set('CVXOPT_BUILD_DSDP', 1)
+
+            # Directory containing libdsdp
+            spack_env.set('CVXOPT_DSDP_LIB_DIR',
+                          spec['dsdp'].libs.directories[0])
+
+            # Directory containing dsdp5.h
+            spack_env.set('CVXOPT_DSDP_INC_DIR',
+                          spec['dsdp'].headers.directories[0])
+
+    @run_after('install')
+    @on_package_attributes(run_tests=True)
+    def install_test(self):
+        """Test that the installation was successful."""
+        python('-m', 'unittest', 'discover', '-s', 'tests')