DeprecationWarning but replacement doesn't work
Chris Angelico
rosuav at gmail.com
Sat Feb 4 15:59:27 EST 2023
On Sun, 5 Feb 2023 at 07:52, Chris Green <cl at isbd.net> wrote:
>
> I am using Image from PIL and I'm getting a deprecation warning as
> follows:-
>
> /home/chris/bin/picShrink.py:80: DeprecationWarning: ANTIALIAS is deprecated and will be removed in Pillow 10 (2023-07-01). Use Resampling.LANCZOS instead.
>
>
> im = Image.open(srcFile)
> im.thumbnail(size, Image.ANTIALIAS)
> im.save(dstFile, "JPEG")
>
> im.thumbnail(size, Resampling.LANCZOS)
>
> I simply get an error as follows:-
>
> picShrink.py
> Traceback (most recent call last):
> File "/home/chris/bin/picShrink.py", line 80, in <module>
> im.thumbnail(size, Resampling.LANCZOS)
> NameError: name 'Resampling' is not defined
>
It looks like Resampling is an enumeration. The warning said
"ANTIALIAS" as a bare name, and you were using Image.ANTIALIAS; it
looks like Image.Resampling.LANCZOS has the same effect.
In fact, it looks like they're actually the same value:
>>> Image.ANTIALIAS is Image.Resampling.LANCZOS
<stdin>:1: DeprecationWarning: ANTIALIAS is deprecated and will be
removed in Pillow 10 (2023-07-01). Use Resampling.LANCZOS instead.
True
So that should be a safe move forward.
ChrisA
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