ImageField problems - dynamic module does not define init function

[erik...@king.com]

I'm experimenting with the ImageFields and cloudstorage and while it works locally I can't get it to work when deployed to GAE. When I try to upload I get the error

from PIL import _imaging as core
ImportError: dynamic module does not define init function (init_imaging)

I have PIL in my libraries:

libraries:

- name: PIL

  version: "1.1.7"

I've tried different images, both large and small, both png and jpg, and everything gives the same error. I've read some other threads about the issue, but haven't found any answers. Is there some documentation somewhere on how to get ImageFields to work properly or has anyone else gotten this problem and managed to solve it?

[erik...@king.com]

I finally found the answer to this, so I'll drop it here if anyone else has the same problem in the future.

My problem was that I had PIL installed via App Engine AND in sitepackages, but I was not excluding PIL in my app.yaml. This causes app engine to try and and use the sitepackages version in production instead of the one bundled with app engine, and this fails since it's not hooked up correctly to the c-libraries in the background.

So I needed to add skip_files.

libraries:
- name: PIL
  version: "1.1.7"

skip_files:

    - sitepackages/PIL*

[Adam Alton]

Thanks for the update Erik!

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[abdul...@brio.co.in]

Thanks for the solution. It works

[dfa...@gmail.com]

Thank you Erik!!

[Chatgpt Ntust]

oh hi all, how to find app.yaml ? could you please tell me more detail. thanks