pillow 7.0.0 has removed PILLOW_VERSION #1718
Description
In the newest version of pillow, the attribute PILLOW_VERSION is removed in favor of PIL.__version__. torchvision relies on the old behaviour and breaks on import with
>>> import torchvision
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "./venv/lib/python3.7/site-packages/torchvision/__init__.py", line 4, in <module>
from torchvision import datasets
File "./venv/lib/python3.7/site-packages/torchvision/datasets/__init__.py", line 9, in <module>
from .fakedata import FakeData
File "./venv/lib/python3.7/site-packages/torchvision/datasets/fakedata.py", line 3, in <module>
from .. import transforms
File "./venv/lib/python3.7/site-packages/torchvision/transforms/__init__.py", line 1, in <module>
from .transforms import *
File "./venv/lib/python3.7/site-packages/torchvision/transforms/transforms.py", line 17, in <module>
from . import functional as F
File "./venv/lib/python3.7/site-packages/torchvision/transforms/functional.py", line 5, in <module>
from PIL import Image, ImageOps, ImageEnhance, PILLOW_VERSION
ImportError: cannot import name 'PILLOW_VERSION' from 'PIL' (./venv/lib/python3.7/site-packages/PIL/__init__.py)
See for reference this issue in Pillow python-pillow/Pillow#4130.
I don't know if version 7 of Pillow breaks torchvision in other ways. Instead of resolving this directly, the <7.0 dependency rule could also be added to the requirements of torchvision.