A python parametric CAD scripting framework based on OCCT

Constraint-based geometry sketcher for blender

Gaphor is the simple modeling tool

GemPy is an open-source, Python-based 3-D structural geological modeling software, which allows the implicit (i.e. automatic) creation of complex geological models from interface and orientation data. It also offers support for stochastic modeling to address parameter and model uncertainties.

Next generation High-Power Rocketry 6-DOF Trajectory Simulation

Physics-Informed Neural networks for Advanced modeling

Comprehensive optical design, optimization, and analysis in Python, including GPU-accelerated and differentiable ray tracing via PyTorch.

Model, simulate, and visualize discrete nonlinear dynamical systems, chaos, and fractals

Simulation and Parameter Estimation in Geophysics - A python package for simulation and gradient based parameter estimation in the context of geophysical applications.

FiPy is a Finite Volume PDE solver written in Python

A Python package to create, run, and post-process MODFLOW-based models.

COBRApy is a package for constraint-based modeling of metabolic networks.

Linked Open Data Modeling Language

A set of data tools in Python

Geophysical Inversion and Modeling Library 🌍

An EPANET compatible python package to simulate and analyze water distribution networks under disaster scenarios.

plait.py - a fake data modeler

A toolbox for integrated information theory.

Reliability engineering toolkit for Python - https://reliability.readthedocs.io/en/latest/

physical optics: integrated modeling, phase retrieval, segmented systems, polynomials and fitting, sequential raytracing...