I use the array module to make the Python/C extension interface easier, to save space for big data sets, and (with from/to), simplify I/O. I don't want a depen

I use the array module to make the Python/C extension interface easier, to save space for big data sets, and (with from/to), simplify I/O. I don't want a dependency on NumPy, especially as I don't need any other feature of NumPy beyond storing a homogeneous, resizeable vector of simple data types.