Save Numpy to File

import numpy as np
x = np.array([1, 2, 4, 5])
x
array([1, 2, 4, 5])
x.shape
(4,)
import tempfile
fp = tempfile.TemporaryFile()
x.tofile(fp)
# use the saved file
y = np.fromfile(fp)
y
array([], dtype=float64)
y.shape
(0,)
# Not sure what's happening. Need to double check again. (WIP)

More:

https://docs.scipy.org/doc/numpy/reference/generated/numpy.fromfile.html