Some of the base structure and library usage decisions of Qudi were ws taken from the ACQ4 project (http://acq4.org and [1]), which is distributed under the MIT License.

Some functions in Qudi are adapted from or inspired by pi3diamond from the Third Institut für Physik of Stuttgart University and there is definitive evidence that pi3diamond is mostly licensed under the GNU Public License Version 3, it is the easiest solution for each author to also license their contribution to this software as GPLv3.

Please add this header to every Python file that you create manually.

"""
<short description of file>
Qudi is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Qudi 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.
You should have received a copy of the GNU General Public License
along with Qudi. If not, see <http://www.gnu.org/licenses/>.
Copyright (C) <year> <Name of Author> <email address>
"""

Some parts of the code are originally from the IPython/jupyter projct (http://jupyter.org) and continue to be distributed under BSD license as well as GPLv3.

[1] ACQ4: an open-source software platform for data acquisition and analysis in neurophysiology research. Campagnola L, Kratz MB, and Manis PB. Front. Neuroinform., 30 January 2014. doi: 10.3389/fninf.2014.00003