ros2topic.verb.echo module

class ros2topic.verb.echo.EchoVerb

Bases: VerbExtension

Output messages from a topic.

add_arguments(parser, cli_name)

choose_qos(node, args)

main(*, args)

subscribe_and_spin(node: rclpy.node.Node, topic_name: str, message_type: MsgType, qos_profile: rclpy.qos.QoSProfile, no_report_lost_messages: bool, raw: bool) → str | None

Initialize a node with a single subscription and spin.