Dynode solves equations of the form y' = f(t, y) using SciPy's ode solver but allows f to be modelled in a modular, object-oriented fashion using the notions of separate Systems that expose states and their corresponding derivatives, ders. f may then be composed of an arbitraily complex collection of, connected or unconnected, Systems.
Documentation is available here: https://freol35241.github.io/dynode/
Distributed under the terms of the MIT license, dynode is free and open source software