SciPy

This is documentation for an old release of NumPy (version 1.17). Read this page in the documentation of the latest stable release (version 2.2).

numpy.ndarray.nbytes

attribute

ndarray.nbytes

Total bytes consumed by the elements of the array.

Notes

Does not include memory consumed by non-element attributes of the array object.

Examples

>>>
>>> x = np.zeros((3,5,2), dtype=np.complex128)
>>> x.nbytes
480
>>> np.prod(x.shape) * x.itemsize
480

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