Colon difference in Matlab and Python
someArray[:,0,0] is the Python NumPy equivalent of MATLAB's someArray(:,1,1).  I've never figured out how to do it in pure Python, the colon slice operation is a total mystery to me with lists-of-lists.
What is the equivalent to someArray(:,1,1) in python from Matlab? 
In python someArray[:][0][0] produces a different value