NumPy binary files #

save() and load() are used for numpy binary files with extension .npy.

The save() function stores the input array in a disk file with .npy as the extension. It takes two inputs: the name of the file and the array to be saved.

np.save('filename.npy', arr)

To reconstruct an array from a .npy file, we use the load() function. It takes one input argument: the name of the file.

y = np.load('filename.npy')