Numberjack’s documentation

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Numberjack is a modelling package written in Python for constraint programming and combinatorial optimization. Python benefits from a large and active programming community, Numberjack is therefore a perfect tool to embed CP technology into larger applications. It is designed to support a number of underlying C/C++ solvers seamlessly and efficiently.

  • Numberjack offers a high level modelling platform.
  • Numberjack directly benefits from Python’s features and modules.
  • Numberjack uses efficient underlying C/C++ solvers.


Copyright (C) 2009 - 2014 Insight Centre for Data Analytics, UCC

This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

The authors can be contacted electronically at

Read the LGPL license.

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