python Image PIL to binary Hex

Question

from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
import urllib.request
import io
import binascii

data = urllib.request.urlopen(\'http://pas         


        

Answer 1

The img object needs to be saved again; write it to another BytesIO object:

output = io.BytesIO()
img.save(output, format='JPEG')

then get the written data with the .getvalue() method:

hex_data = output.getvalue()

The PIL-for-python-3 landscape is rather muddled at the moment. The Pillow fork looks to be the best, maintained version out there at the moment. It includes fixes that make saving to a BytesIO object work. If you run into a io.UnsupportedOperation: fileno exception using the above code, you have a version that was not yet fixed, in which case you'll have to resort to using a temporary file instead.