This is documentation for an old release of NumPy (version 1.7.0). Read this page Search for this page in the documentation of the latest stable release (version > 1.17).
numpy.memmap.itemsize
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memmap.itemsize
Length of one array element in bytes.
Examples
>>> x = np.array([1,2,3], dtype=np.float64)
>>> x.itemsize
8
>>> x = np.array([1,2,3], dtype=np.complex128)
>>> x.itemsize
16