Skip to content
Branch: master
Go to file

Latest commit


Failed to load latest commit information.
Latest commit message
Commit time

Azure Build Status Conda installer Downloads Badge Language grade: Python Codacy Badge Binder DOI



pythonocc is a python package whose purpose is to provide 3D modeling features. It is intended to CAD/PDM/PLM and BIM related development.

Latest release : pythonocc-core 7.4.0 (february 2020)


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, intertia computations etc.

Try online at mybinder

Click Binder to open a jupyter notebook running latest pythonocc-core 7.4.0, gmesh 4.5.3 ( 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 3.6 and 3.7. This will get you up and running in minutes whether you run win32/win64/linux64/osx64. Here is an example for python 3.7:

# first create an environment
conda create --name=whatever-name python=3.7
source activate whatever-name
conda install -c dlr-sc pythonocc-core=7.4.0

Conda packages are provided for python 3.6 and 3.7 at dlr-sc channel. conda-forge provides 3.7 and 3.8 binaries:

# first create an environment
conda create --name=whatever-name python=3.8
source activate whatever-name
conda install -c conda-forge pythonocc-core=7.4.0

Build from source by yourself

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

Other pythonocc related resources

Online resources for development

We use the following online resources:

pythonocc, oce and opencascade dependencies

From release 7.4.0, pythonocc-core depends on the official OpenCascade-7.4.0 library (

Former releases rely on oce (OpenCascade Community Edition), available at
oce C++ library / CAD kernel.


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.

You can’t perform that action at this time.