ROS 2 actions and executors: listener

Official ROS 2 actions and executors python main example for listener. Inspect the pinned source and upstream setup before use.

ros2-examples-rclpy-executors-examples-rclpy-executors-listener-py | Record version: source-46a9969d925caf7b9ff99762673362c121946f8314752b6938cf2db42ab26aef

Record JSON | Markdown | Pinned upstream source

Access

Fetch the pinned repository, verify this source checksum, and use upstream installation and invocation. This record does not install or execute code.

Hub preparation adapter: false. Follow the upstream setup and invocation contract.

Source and license

Repository: https://github.com/ros2/examples
Revision: 07008852303f2a35a91c65d78046b274a35477ea
Path: rclpy/executors/examples_rclpy_executors/listener.py
Source SHA256: 46a9969d925caf7b9ff99762673362c121946f8314752b6938cf2db42ab26aef
Original authors: See pinned upstream source and license notices.
License: Apache-2.0
License scope: Selected example source code only; preserve upstream copyright and per-file notices. Robot models, datasets, weights, simulator binaries and third-party dependencies retain their separate licenses.
License SHA256: cfc7749b96f63bd31c3c42b5c471bf756814053e847c10f3eb003417bc523d30
Hub commit: 88022cc5fa2396f47b1f2354e988189dc8e53bea

Requirements

{
  "python": "ROS 2 Jazzy Python 3 / C++ supported toolchain",
  "packages": [
    "ROS 2 Jazzy",
    "rclpy/rclcpp and example package dependencies from package.xml"
  ],
  "display": "Build with colcon and source the ROS 2 overlay. These are action/executor/sensing building blocks, not completed robot manipulation tasks.",
  "execution_domain": "middleware",
  "source_imports": [
    "rclpy",
    "rclpy.executors",
    "rclpy.node",
    "std_msgs.msg",
    "sys"
  ]
}

Invocation

{
  "entrypoint": "python rclpy/executors/examples_rclpy_executors/listener.py",
  "notes": "Build with colcon and source the ROS 2 overlay. These are action/executor/sensing building blocks, not completed robot manipulation tasks. No Hub preparation adapter or measured runtime success is claimed."
}

Explicit compatibility

[]

Missing environment fields remain unknown. Discovery labels do not establish robot compatibility.

Evidence

Level: source_reviewed; runtime verification: not_run.

Fetched and SHA-256 checked this immutable source; statically parsed Python or located native main; verified pinned license bytes and checked explicit per-file license identifiers. No upstream code executed.

Source review and contributor reports do not establish task completion. Preserve upstream attribution and licenses.