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 small development team
with stable Y-O-Y commits -
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took an estimated 83 years of effort (COCOMO model)
starting with its first commit in August, 2014
ending with its most recent commit 16 days ago
Quick Reference
GNU Lesser General Public License v3.0 only
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These details are provided for information only. No information here is legal advice and should not be used as such.
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30 Day SummaryNov 21 2025 — Dec 21 2025
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12 Month SummaryDec 21 2024 — Dec 21 2025
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