ros2 / ros2/geometry2

Create a callback group to spin on in Python TransformListener

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#477 3 comments 0 reactions 0 assignees View on GitHub

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backlog enhancement
Dominant language
C++
Stars
153
Forks
256
Avg merge
3d 23h
Merged PRs (30d)
14

Description

Feature request

Feature description

Same as #442, but applied to the Python implementation.

This will make the behavior consistent between languages.

Implementation considerations

It would be nice to emit a warning if the user is relying on the old behavior, but I'm not sure how feasible this is.
At the very least, we should add a release note to the Humble release page to highlight the behavior change.

Contributor guide

No contributing guide indexed for this repository

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 tf2_ros_py/tf2_ros/transform_listener.py at the linked Python TransformListener implementation and compare the requested behavior with issue #442. Add the callback-group behavior for spinning, then check whether a warning for users relying on the old behavior is feasible and add a Humble release note describing the change.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
robotics
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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