Orange is a component based machine learning library for Python developed at Laboratory of Artificial Intelligence, Faculty of Computer and Information Science, University of Ljubljana, Slovenia.
We can compare Orange to the Trident Platform from Microsoft. The only difference is that its open source and works better.
Orange is free software; you can redistribute it and/or modify i under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or Orange 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 General Public License for more details.