I have a numpy.array and I want to find out what endianness is used in the underlying representation.
A byteorder property is documented here, but none of the given examples show it being used with an array.
byteorder is a data type objects dtype attribute so you need to do this:
In [10]: import numpy as np
In [11]: arr = np.array([1,2,3])
In [12]: arr.dtype.byteorder
Out[12]: '='
来源：https://stackoverflow.com/questions/34097845/determine-the-endianness-of-a-numpy-array