The Brain Networks Group and Neurophysics Department of the Max-Planck Institute for Human Cognitive and Brain Sciences Leipzig released an open-source Python software for neural network and dynamical systems modeling: PyRates (https://github.com/pyrates-neuroscience/PyRates, https://www.cbs.mpg.de/departments/neurophysics/software/pyrates) Main features of PyRates are: - Intuitive and re-usable model definitions via YAML files or purely in Python - networkx representations of each model allows to compute graph theoretic measurements on the fly (https://networkx.github.io/) - Efficient numerical simulations via scipy, numpy and tensorflow - evolutionary model parameter optimization - large-scale parameter sweeps on single machines and compute clusters - parameter continuation and bifurcation analysis via auto-07p For a full list of features and their documentation, check out the PyRates documentation at https://pyrates.readthedocs.io/en/latest/. For feedback and contributions, contact us via our GitHub repository: https://github.com/pyrates-neuroscience/PyRates. Install instructions can be found there as well!