numpy.memmap.tobytes#

method

memmap.tobytes(order='C')#

Construct Python bytes containing the raw data bytes in the array.

Constructs Python bytes showing a copy of the raw contents of data memory. The bytes object is produced in C-order by default. This behavior is controlled by the order parameter.

Parameters:

order{『C』, 『F』, 『A』}, optional: Controls the memory layout of the bytes object. 『C』 means C-order, 『F』 means F-order, 『A』 (short for Any) means 『F』 if a is Fortran contiguous, 『C』 otherwise. Default is 『C』.

Returns:

sbytes: Python bytes exhibiting a copy of a’s raw data.

也參考

frombuffer: Inverse of this operation, construct a 1-dimensional array from Python bytes.

Examples

>>> import numpy as np
>>> x = np.array([[0, 1], [2, 3]], dtype='<u2')
>>> x.tobytes()
b'\x00\x00\x01\x00\x02\x00\x03\x00'
>>> x.tobytes('C') == x.tobytes()
True
>>> x.tobytes('F')
b'\x00\x00\x02\x00\x01\x00\x03\x00'