Pythonocc Core Save

Python package for 3D CAD/BIM/PLM/CAM

Project README

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pythonocc provides 3D modeling and dataexchange features. It is intended to CAD/PDM/PLM and BIM related development. It is based on the OpenCascade Technology modeling kernel.

Latest release: pythonocc-core 7.7.0 (December 2022)


pythonocc provides the following features:

  • a full access from Python to almost all af the thousand OpenCascade C++ classes. Classes and methods/functions share the same names, and, as possible as it can be, the same signature
  • 3D visualization from the most famous Python Gui (pyQt, PySide1 and 2, wxPython)
  • 3D visualization in a web browser using WebGl and/or x3dom renderers
  • 3D visualization and work within a jupyter notebook
  • Various utility Python classes/methods for DataExchange, Topology operations, inertia computations etc.

Cite as

pythonocc is widely used in the industrial and academic communities. It is registered as a Zenodo open caccess software ( and should be cited as:

Thomas Paviot. (2022). pythonocc (7.7.0). Zenodo.

Try online at mybinder

Click Binder to open a jupyter notebook running latest pythonocc-core 7.7.0, gmesh ( and latest IfcOpenshell ( dev branch.

Download/install binaries for Linux/OSX/Windows

pythonocc provides precompiled conda packages (they depend on third part libraries made available from the dlr-sc and conda-forge conda channels) for python 3.8, 3.9 and 3.10. This will get you up and running in minutes whether you run win32/win64/linux64/osx64. Here is an example for python 3.9:

# first create an environment
conda create --name=pyoccenv python=3.9
source activate pyoccenv
conda install -c conda-forge pythonocc-core=7.7.0

Other conda channels may provide pythonocc-core packages, check

Build from source

Read the instructions where you find compilation instructions for all platforms.


You can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 3 as published by the Free Software Foundation.

Open Source Agenda is not affiliated with "Pythonocc Core" Project. README Source: tpaviot/pythonocc-core
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