gotstate 1.0.2

A hierarchical finite state machine library

gotstate

A hierarchical finite state machine (HFSM) library for Python, focusing on reliability and ease of use.

Features

• Hierarchical state machines with composite states
• Type-safe state and event handling
• Thread-safe event processing
• Guard conditions and transition actions
• State data management with lifecycle hooks
• Timeout events
• History states (both shallow and deep)
• Error handling
• Activation hooks for monitoring
• Plugin system

Status

Version 1.0.X

Initial release!

Design Philosophy

gotstate is designed with the following principles:

• Safety: Runtime validation and type checking
• Clarity: Intuitive API design
• Reliability: Built for real-world applications
• Performance: Minimal overhead
• Flexibility: Extensible through plugins

Example

from hsm.core import StateMachine, State, Event, Transition

# Define states
class Idle(State):
    pass

class Running(State):
    pass

# Define events
class Start(Event):
    pass

class Stop(Event):
    pass

# Create state machine
sm = StateMachine("example")
idle = sm.add_state(Idle("idle"))
running = sm.add_state(Running("running"))

# Add transitions
sm.add_transition(Transition(idle, running, Start))
sm.add_transition(Transition(running, idle, Stop))

# Initialize and use
sm.initialize()
assert sm.current_state == idle
sm.handle_event(Start())
assert sm.current_state == running

Installation

Install using pip:

pip install gotstate

Requirements

• Python 3.8 or higher
• See requirements.txt for full dependencies

Documentation

Documentation is available in the docs/ directory:

• API Reference
• Usage Guide
• Examples

License

Licensed under the MIT License. See the LICENSE file for details.

Contributing

Contributions are welcome! Please read our contributing guidelines in CONTRIBUTING.md.

Security

This package follows Python security best practices.