Project Summary
pythonOCC is a 3D CAD/CAE/PLM development framework for the Python programming language. It provides features such as advanced topological and geometrical operations, data exchange (STEP, IGES, STL import/export), 2D and 3D meshing, rigid body simulation, parametric modeling, GUI management support (wxPython, PyQt, python-xlib).
Some high level packages (parametric modeling, rigid body simulation, knowledge-based engineering, topology, data exchange, webservices, etc.), relying on industrial quality proven libraries, extend the builtin features of those libraries to enable highly dynamic and modular programming in the engineering field.
Get ready for Agile CAD Development.
In a Nutshell, pythonocc...
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has a well established, mature codebase
maintained by a average size development team
with decreasing Y-O-Y commits -
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took an estimated 69 years of effort (COCOMO model)
starting with its first commit in August, 2014
ending with its most recent commit about 2 months ago
Quick Reference
GNU Lesser General Public License v3.0 only
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Use Patent Claims
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
Include Install Instructions
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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30 Day SummaryJul 24 2025 — Aug 23 2025
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12 Month SummaryAug 23 2024 — Aug 23 2025
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