Open webp file with Pillow

Question

On an Anaconda set up, I want to run following simple code:

from PIL import Image
img = Image.open('test.webp')

This works on my Linux machine, but on Windows:

UserWarning: image file could not be identified because WEBP support not installed
  warnings.warn(message)
---------------------------------------------------------------------------
UnidentifiedImageError                    Traceback (most recent call last)
<ipython-input-3-79ee787a81b3> in <module>
----> 1 img = Image.open('test.webp')

~\miniconda3\lib\site-packages\PIL\Image.py in open(fp, mode, formats)
   3028     for message in accept_warnings:
   3029         warnings.warn(message)
-> 3030     raise UnidentifiedImageError(
   3031         "cannot identify image file %r" % (filename if filename else fp)
   3032     )

UnidentifiedImageError: cannot identify image file 'test.webp'

I do have the libwebp package installed, and libwebp.dll is present in the Library\bin directory of my Anaconda set up.

Any idea?

Answer 1

The question is whether Anaconda actually builds Pillow with webp support. Looking on the anaconda website I couldn't determine this.

However, conda-forge does build Pillow with webp support, see here. So you might want to consider using that.