GNU General Public License (GPL) Yes NITRC LFPy LFPy is a Python package for calculation of extracellular potentials from multicompartment neuron models. It relies on the Python interface provided by the NEURON simulator. LFPy GNU General Public License (GPL), Computational Neuroscience http://www.nitrc.org/projects/lfpy/, http://www.nitrc.org/projects/lfpy/