runner.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
# Copyright (C) 2008-2025 German Aerospace Center (DLR) and others.
# This program and the accompanying materials are made available under the
# terms of the Eclipse Public License 2.0 which is available at
# https://www.eclipse.org/legal/epl-2.0/
# This Source Code may also be made available under the following Secondary
# Licenses when the conditions for such availability set forth in the Eclipse
# Public License 2.0 are satisfied: GNU General Public License, version 2
# or later which is available at
# https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
# SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later

# @file    runner.py
# @author  Michael Behrisch
# @author  Daniel Krajzewicz
# @author  Jakob Erdmann
# @date    2011-03-04


from __future__ import print_function
from __future__ import absolute_import
import os
import sys

if "SUMO_HOME" in os.environ:
    sys.path.append(os.path.join(os.environ["SUMO_HOME"], "tools"))
import traci  # noqa
import sumolib  # noqa

traci.start([sumolib.checkBinary('sumo'), "-c", "sumo.sumocfg"])
traci.simulationStep()

# cause an error and catch it
try:
    traci.vehicle.setRoute("horiz", "dummy")
except traci.TraCIException:
    pass

traci.load(["sumo.sumocfg"])
traci.simulationStep()
traci.close()


traci.start([sumolib.checkBinary('sumo'), "-S", "-Q", "-c", "sumo.sumocfg", "-l", "log.txt"])
for i in range(3):
    traci.simulationStep()
    print("step=%s departed=%s" % (traci.simulation.getTime(),
                                   traci.simulation.getDepartedIDList()))

print("reloading")
traci.load(["-S", "-Q", "-c", "sumo.sumocfg"])
while traci.simulation.getMinExpectedNumber() > 0:
    traci.simulationStep()
    print("step=%s departed=%s" % (traci.simulation.getTime(),
                                   traci.simulation.getDepartedIDList()))
traci.close()