HI,

with that launch file

from launch import LaunchDescription
from launch_ros.actions import Node

def generate_launch_description():
    return LaunchDescription([
        Node(
            package='node_with_parameter',
            executable='node_with_parameter',
            name='node_with_parameter',
            output='screen',
            parameters=[{"turn": 200}])
])

the "turn: 200" get's converted when reading the argument with

myvar = sys.argv[1]

to

     --ros-args

any idea why ? any hint how to properly send parameters in such a simple launch file ?

Regards