What is the simplest way to extract the jpeg preview from a Nikon raw file with python?

Question

I'm looking for the simplest way to extract the embedded jpg preview from a Nikon raw file (.nef) in Python 2.7. How should I do this?

Answer 1

Although I have not been able to test it, it may work with rawpy to read the .nef file and imageio to save it as jpg:

import rawpy
import imageio

path = 'image.nef'
with rawpy.imread(path) as raw:
    rgb = raw.postprocess()
imageio.imsave('default.jpg', rgb)