ros2 / ros2/ros2cli

`get_action_names_and_types` is not implemented by the rclpy node class

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#748 3 comments 1 reaction 0 assignees View on GitHub

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Dominant language
Python
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Avg merge
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Merged PRs (30d)
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Description

Bug report

The get_action_names_and_types API defined here https://github.com/ros2/ros2cli/blob/rolling/ros2action/ros2action/api/__init__.py calls an homonym method on the Node rclpy class.
It looks like this function is not implemented.

This problem applies to both Galactic and Humble.

Is there a reason for that?
Which of the two libraries (ros2cli or rclpy) should be updated?

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with ros2action/ros2action/api/init.py and trace the get_action_names_and_types call into the rclpy Node API. Determine which library owns the missing implementation and compare behavior in Galactic and Humble; done means the API is implemented in the appropriate library and the ros2action call works in both distributions.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
api, cli
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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