Pillow 4.1.0 got an error: "can not migrate ImageField because Pillow is not installed" > Pillow 4.0.0 works properly, Python 3.6.0

[MuslimBeibytuly]

[[deleted boilerplate]]

[hugovk]

Please will you edit the body of your issue and fill in the sections with more info?

[astarrh]

I am experiencing the same issue on Windows 10 with Python version 3.6

I am using PIllow to support a Django (1.11) ImageField. When I install the latest Pillow release (Pillow==4.1.0), it doesn't seem to take.

Instead, when I check for errors it reports the following:

gallery.Photo.image: (fields.E210) Cannot use ImageField because Pillow is not installed.
HINT: Get Pillow at https://pypi.python.org/pypi/Pillow or run command "pip install Pillow".

I can clearly see the directory in the file browser and it is listed when I do a pip freeze. However, Pillow doesn't appear when I do a scan of the modules from help() in the shell, and I am unable to import PIL.

Rolling back to Version 4.0 finally resolved it.

[hugovk]

This sounds like #2479 (comment).

Are you using Python 3.6.0?

Does Pillow 4.1.0 work if you update to Python 3.6.1?

[wiredfool]

closing, duplicate and no activity

[astarrh]

Finally got back to this. Python upgrade resolves the issue. Thank you.

[dperetti]

This misleading error message can occur when Pillow was successfully built and installed, then a required library removed.
Just happened to me while optimizing a docker image! (libjpeg was missing)