I am learning to use Pillow. I am trying to display the thumbnail but don’t know how.
Here is my current code:

img = Image.open('block.jpg')
new = img.thumbnail((400,400),Image.Resampling.LANCZOS)

I’ve tried using

img.resize((400,400),Image.Resampling.LANCZOS)

but since I’m using a 16*16 pixel image, the quality drops a lot.

When I try
new.show()
I get an error.