# ____________________________________________________________________________________
#
# Pyomo: Python Optimization Modeling Objects
# Copyright (c) 2008-2026 National Technology and Engineering Solutions of Sandia, LLC
# Under the terms of Contract DE-NA0003525 with National Technology and Engineering
# Solutions of Sandia, LLC, the U.S. Government retains certain rights in this
# software. This software is distributed under the 3-clause BSD License.
# ____________________________________________________________________________________
import logging
from pyomo.opt.base.solvers import SolverFactory
from pyomo.common import Executable
from pyomo.common.collections import Bunch
from pyomo.solvers.plugins.solvers.ASL import ASL
logger = logging.getLogger('pyomo.solvers')
[docs]
@SolverFactory.register('path', doc='Nonlinear MCP solver')
class PATHAMPL(ASL):
"""An interface to the PATH MCP solver."""
[docs]
def __init__(self, **kwds):
#
# Call base constructor
#
kwds["type"] = "path"
ASL.__init__(self, **kwds)
self._metasolver = False
#
# Define solver capabilities, which default to 'None'
#
self._capabilities = Bunch()
self._capabilities.linear = True
def _default_executable(self):
executable = Executable("pathampl")
if not executable: # pragma:nocover
logger.warning(
"Could not locate the 'pathampl' executable, "
"which is required for solver %s" % self.name
)
self.enable = False
return None
return executable.path()
[docs]
def create_command_line(self, executable, problem_files):
self.options.solver = 'pathampl'
return ASL.create_command_line(self, executable, problem_files)