ReactiveX for Python (RxPY)

ReactiveX for Python (RxPY) is a library for composing asynchronous and event-based programs using observable sequences and pipable query operators. It enables developers to represent asynchronous data streams with Observables, query them using operators, and parameterize concurrency using Schedulers. The library is currently at stable version 4.1.0, with development on version 5.0.0 actively ongoing, and follows a release cadence that modernizes it with current Python standards.