method
ndarray.byteswap(inplace=False)
Swap the bytes of the array elements
Toggle between low-endian and big-endian data representation by returning a byteswapped array, optionally swapped in-place. Arrays of byte-strings are not swapped. The real and imaginary parts of a complex number are swapped individually.
Parameters:inplacebool, optionalIf True, swap bytes in-place, default is False.
Returns:outndarrayThe byteswapped array. If inplace is True, this is a view to self.
Examples
>>> importnumpyasnp>>> A=np.array([1,256,8755],dtype=np.int16)>>> list(map(hex,A))['0x1', '0x100', '0x2233']>>> A.byteswap(inplace=True)array([ 256, 1, 13090], dtype=int16)>>> list(map(hex,A))['0x100', '0x1', '0x3322']Arrays of byte-strings are not swapped
>>> A=np.array([b'ceg',b'fac'])>>> A.byteswap()array([b'ceg', b'fac'], dtype='|S3')A.view(A.dtype.newbyteorder()).byteswap() produces an array with the same values but different representation in memory
>>> A=np.array([1,2,3],dtype=np.int64)>>> A.view(np.uint8)array([1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0], dtype=uint8)>>> A.view(A.dtype.newbyteorder()).byteswap(inplace=True)array([1, 2, 3], dtype='>i8')>>> A.view(np.uint8)array([0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 3], dtype=uint8)