"kill roslaunch" Code Answer's
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kill roslaunch
ChienDuong
on May 21, 2021
#!/usr/bin/env python
import rospy
import subprocess
import signal
child = subprocess.Popen(["roslaunch","ros_arduino_python","arduino.launch"])
#child.wait() #You can use this line to block the parent process untill the child process finished.
print("parent process")
print(child.poll())
rospy.loginfo('The PID of child: %d', child.pid)
print ("The PID of child:", child.pid)
rospy.sleep(15)
child.send_signal(signal.SIGINT) #You may also use .terminate() method
#child.terminate()
#for more: https://docs.python.org/2/library/subprocess.htmlSource: answers.ros.org
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