Change in behavior with JPEG Images in 11.2.0

[davidmezzetti]

It looks like something in Pillow 11.2 introduced an issue similar to this: #8472. This time with the filename attribute.

What did you do?

import pickle

from io import BytesIO

from PIL import Image

im = Image.open("anyimage.jpg")

p = pickle.dumps(im)
im = pickle.loads(p)

# Fails in 11.2, works in 11.1
output = BytesIO()
im.save(output, format=im.format, quality="keep")

What did you expect to happen?

The code above to work.

What actually happened?

Traceback (most recent call last):
  File "test.py", line 14, in <module>
    im.save(output, format=im.format, quality="keep")
  File "/local/lib64/python3.9/site-packages/PIL/Image.py", line 2546, in save
    if isinstance(self, ImageFile.ImageFile) and filename == self.filename:
  File "/local/lib64/python3.9/site-packages/PIL/JpegImagePlugin.py", line 400, in __getattr__
    raise AttributeError(name)
AttributeError: filename

What are your OS, Python and Pillow versions?

• OS: Linux
• Python: Python 3.9
• Pillow: 11.2

[hugovk]

Please edit and fill in the issue template:

https://github.com/python-pillow/Pillow/blob/main/.github/ISSUE_TEMPLATE/ISSUE_REPORT.md?plain=1

[davidmezzetti]

Done.

[radarhere]

I've created #8859

[davidmezzetti]

Thank you for the rapid response and fix! I appreciate it.

[radarhere]

Pillow 11.2.1 has now been released with the fix.