# ___________________________________________________________________________
#
# Pyomo: Python Optimization Modeling Objects
# Copyright (c) 2008-2025
# 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 module was originally developed as part of the IDAES PSE Framework
#
# Institute for the Design of Advanced Energy Systems Process Systems
# Engineering Framework (IDAES PSE Framework) Copyright (c) 2018-2019, by the
# software owners: The Regents of the University of California, through
# Lawrence Berkeley National Laboratory, National Technology & Engineering
# Solutions of Sandia, LLC, Carnegie Mellon University, West Virginia
# University Research Corporation, et al. All rights reserved.
#
# This software is distributed under the 3-clause BSD License.
# ___________________________________________________________________________
from pyomo.common.dependencies import attempt_import
from pyomo.common.deprecation import relocated_module_attribute
from pyomo.scripting.pyomo_parser import add_subparser
relocated_module_attribute(
'QtApp', 'pyomo.contrib.viewer.pyomo_qtapp.QtApp', version='6.9.3'
)
qtconsole_app, qtconsole_available = attempt_import(
"qtconsole.qtconsoleapp", defer_import=False
)
[docs]
def main(*args):
# Import the Qt infrastructure (if it exists)
import pyomo.contrib.viewer.qt as myqt
if not myqt.available or not qtconsole_available:
errors = list(myqt.import_errors)
if not qtconsole_available:
errors.append(qtconsole_app._moduleunavailable_message())
print("qt not available\n " + "\n ".join(errors))
return
# Ensure that all Pyomo plugins have been registered
import pyomo.environ
# Import & run the Qt application
from pyomo.contrib.viewer.pyomo_qtapp import QtApp
QtApp.launch_instance()
# Add a subparser for the model-viewer command
add_subparser(
"model-viewer",
func=main,
help="Run the Pyomo model viewer",
add_help=False,
description="This runs the Pyomo model viewer",
)
if __name__ == '__main__':
main()