I like your proposal.
But the point is  it's less used and hence will make people look up more. 
Also it's a bit overkill given that we deal with a few entries only. 
I would always suggest to use the most basic plain vanilla python syle if no performance issue is involved.
so people know this is easy stuff. once you use numpy kungfu people will think this is a numerical / matrix problem.
This is more a style thing (but not unimportant).