ETS projects are licensed under Enthought's BSD-style license.
However, you should note that specific usage of the optional Qt backends in ETS, instead of the default WX backends, requires that your application also use Qt and PyQt, which are NOT BSD licensed, and thus may impact your distribution. Please see TrollTech, Riverbank Computing and the PySide project for more information. The following are the ETS projects that are, or internally contain, Qt backend code:
- Enable - Chaco