Is there a Python library for generating .ico files?

python favicon
Hank Gay picture Hank Gay · Sep 5, 2008 · Viewed 17.8k times · Source

I'm looking to create favicon.ico files programatically from Python, but PIL only has support for reading ico files.

Answer

Ronan Paixão picture Ronan Paixão · Mar 23, 2016

You can use Pillow:

from PIL import Image
filename = r'logo.png'
img = Image.open(filename)
img.save('logo.ico')

Optionally, you may specify the icon sizes you want:

icon_sizes = [(16,16), (32, 32), (48, 48), (64,64)]
img.save('logo.ico', sizes=icon_sizes)

The Pillow docs say that by default it will generate sizes [(16, 16), (24, 24), (32, 32), (48, 48), (64, 64), (128, 128), (255, 255)] and any size bigger than the original size or 255 will be ignored.

Yes, it is in the Read-only section of the docs, but it works to some extent.

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