Hi all,

Say python’s builtin `int` type. It can be as large as memory allows.

np.ndarray on the other hand is optimized for vectorization via strides, memory 
structure and many things that I probably don’t know. Well the point is that it 
is convenient and efficient to use for many things in comparison to python’s 
built-in list of integers.

So, I am thinking whether something in between exists? (And obviously something 
more clever than np.array(dtype=object))

Probably something similar to `StringDType`, but for integers and floats. (It’s 
just my guess. I don’t know anything about `StringDType`, but just guessing it 
must be better than np.array(dtype=object) in combination with np.vectorize)

Regards,
dgpb

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