Event Handling Python Packages

pyobservable

Simple event system for Python with weak reference support

pynnex

PynneX provides a modern emitter-listener (signal-slot) pattern with thread safety, async support, and dynamic connection detection. Build decoupled architectures without heavy frameworks. It’s pure Python 3.10+; minimal overhead. Choose from multiple aliases (signal-slot or publisher-subscriber).

cs-events

C#-style event handling mechanism for Python

coordinate-canvas

Matplotlib-based canvas that allows line drawing and coordinate retrieval

mpl-events

A high-level API for matplotlib events handling

tsignal

A Python Signal-Slot library inspired by Qt, featuring thread-safe communication, async support, and automatic connection type detection. Perfect for decoupled event-driven architecture and thread synchronization.

ccanvas

Matplotlib-based canvas that allows line drawing and coordinate retrieval

prasar

Prasar is a robust, type-safe event handling framework for Python. Supporting both sync and async events, it offers strong type checking and custom colored logging. With an easy-to-use API for binding and emitting events, comprehensive error handling, and Python 3.7+ compatibility, Prasar simplifies event-driven programming.