py_trees.demos.stewardship module

A py_trees demo.

class py_trees.demos.stewardship.Finisher

Bases: Behaviour

Gathers blackboard data from other behaviours and prints a summary.

To be used at the end of the tree run.

update() → Status

Fetch blackboard variables and print a summary.

Returns:

Always returns SUCCESS.

class py_trees.demos.stewardship.PeriodicSuccess

Bases: Periodic

Write the period from Periodic as a variable on the blackboard.

update() → Status

Run the Periodic update and write to blackboard.

Returns:

Returns the Status of Periodic

class py_trees.demos.stewardship.SuccessEveryN

Bases: SuccessEveryN

Add a blackboard counter to SuccessEveryN.

update() → Status

Run the SuccessEveryN update and write to blackboard.

Returns:

Returns the Status of SuccessEveryN

py_trees.demos.stewardship.command_line_argument_parser() → ArgumentParser

Process command line arguments.

Returns:

the argument parser

py_trees.demos.stewardship.create_tree() → Behaviour

Create the root behaviour and it’s subtree.

Returns:

the root behaviour

py_trees.demos.stewardship.description() → str

Print description and usage information about the program.

Returns:

the program description string

py_trees.demos.stewardship.epilog() → str | None

Print a noodly epilog for –help.

Returns:

the noodly message

py_trees.demos.stewardship.main() → None

Entry point for the demo script.

py_trees.demos.stewardship.pre_tick_handler(behaviour_tree: BehaviourTree) → None

Generate a simple pre-tick banner printing to stdout.