robokudo.behaviours.clear_errors

Error handling behavior for RoboKudo behavior trees.

This module provides a behavior that clears error states stored on the behavior tree’s blackboard. It is typically used:

  • At the start of a pipeline to ensure a clean error state

  • After error recovery to reset error flags

  • Before starting new processing sequences

The behavior integrates with RoboKudo’s error handling system to manage error states across the behavior tree.

Classes

ClearErrors

A behavior that clears error states from the blackboard.

Module Contents

class robokudo.behaviours.clear_errors.ClearErrors(name='ClearErrors')

Bases: py_trees.behaviour.Behaviour

A behavior that clears error states from the blackboard.

This behavior is used to reset error conditions that may have been recorded on the behavior tree’s blackboard. It is commonly used:

  • As part of pipeline initialization

  • After error recovery sequences

  • Before starting new processing tasks

The behavior always returns SUCCESS after clearing errors.

initialise()

Initialize the behavior.

This method is called when the behavior is first ticked. No initialization is needed for this behavior.

update() → py_trees.common.Status

Clear any error states from the blackboard.

This method: * Calls the error handling utility to clear blackboard exceptions * Always returns SUCCESS since clearing errors cannot fail

Returns:

Always returns SUCCESS

Return type:

py_trees.common.Status