compatibility of read_blk.py read_blk.py wasn't running on python2 due to the use of python3 fonction made changed using struct while reading data  to be able to run it on both
compatibility of read_blk.py
read_blk.py wasn't running on python2 due to the use of
python3 fonction
made changed using struct while reading data  to be able to run it on both

NeuralEnsemble/python-neo,JuliaSprenger/python-neo,rgerkin/python-neo,samuelgarcia/python-neo,INM-6/python-neo,apdavison/python-neo