Pillow on OSX arm64

[francishunger]

How do I tell pip where Pillow needs to look for Pillow-Modules (like libjpeg, libtiff?)
I'm on OSX Big Sur, arm64 architecture and need Python 3.8 in order to run Keras.

• OS: Big Sur 11.2
• Python: 3.8
• Pillow: 8.1.0

As per instruction on the homebrew website I have installed python 3.8 and its packages into /opt/homebrew/lib/python3.8/

python3 -m pip install Pillow --no-cache-dir 
Collecting Pillow
  Downloading Pillow-8.1.0.tar.gz (44.9 MB)
     |████████████████████████████████| 44.9 MB 1.3 MB/s 
Building wheels for collected packages: Pillow
  Building wheel for Pillow (setup.py) ... done
  Created wheel for Pillow: filename=Pillow-8.1.0-cp38-cp38-macosx_11_0_arm64.whl size=528914 sha256=fa6d3dac05ed7f101de315304c41aa43b86b622a41ee745ab28f9376bc65b9ab
  Stored in directory: /private/var/folders/nw/40xtxx5s5rld0d0hddbndnf00000gn/T/pip-ephem-wheel-cache-3ob_jkx9/wheels/4e/db/04/9dcbaf9865568850d9bbdeb9b6b697e70f804d18e7e8aac050
Successfully built Pillow
Installing collected packages: Pillow
Successfully installed Pillow-8.1.0

When I called Python with

import PIL
from PIL import Image

I've got the following error message

from PIL import Image
  File "/Users/name/Library/Python/3.8/lib/python/site-packages/PIL/Image.py", line 94, in <module>
    from . import _imaging as core
ImportError: dlopen(/Users/name/Library/Python/3.8/lib/python/site-packages/PIL/_imaging.cpython-38-darwin.so, 2): Symbol not found: _jpeg_resync_to_restart
  Referenced from: /Users/name/Library/Python/3.8/lib/python/site-packages/PIL/_imaging.cpython-38-darwin.so
  Expected in: flat namespace
 in /Users/francis/Library/Python/3.8/lib/python/site-packages/PIL/_imaging.cpython-38-darwin.so

now
brew install libjpeg
successfully installed libjpeg, but the error remained.

So I manually installed libjpeg to /usr/local/lib and it solved the problem.

curl -L -O http://ijg.org/files/jpegsrc.v9d.tar.gz
tar -xvf jpegsrc.v9d.tar.gz
cd jpeg-9d
./configure CFLAGS="-arch arm64" CXXFLAGS="-arch arm64" LDFLAGS="-arch arm64" CC="clang"
make
sudo make install

Only for the next error to occur, which was a missing libtiff. Yet libtiff is allready brewed and installed at /opt/homebrew/Cellar/libtiff/4.2.0. Again it didn't an Pillow now throws this error on runtime:

…
ImportError: dlopen(/Users/name/Library/Python/3.8/lib/python/site-packages/PIL/_imaging.cpython-38-darwin.so, 2): Symbol not found: _TIFFClientOpen
  Referenced from: /Users/name/Library/Python/3.8/lib/python/site-packages
…

How do I solve this beyond installing libtiff manually (because it goes on with further modules, doesn't it)?

[radarhere]

Hi. Part of the problem here is that Pillow hasn't yet uploaded arm64 wheels to PyPI. If you are interested in a quick and easy solution, I would recommend downloading the wheel from #5093 (comment), expanding, and then python3 -m pip install Pillow-8.0.1-cp38-cp38-macosx_11_0_arm64.whl

I would also like to point out though that "Python 3.8.7 is not yet fully supported on macOS 11 Big Sur." (and Python 3.8.8 says nothing new on that front) - so the official Python guideline would be to use Python 3.9 instead, as "3.9.1 is the first version of Python to support macOS 11 Big Sur."

[radarhere]

What does brew --prefix output?

[francishunger]

brew --prefix

$ /opt/homebrew

[francishunger]

I uninstalled pillow and reinstalled it from the above mentioned wheel. This time it worked. I think earlier, when I tried that I had my homebrew still installed under /usr/lib and the pillow of the wheel v.8.0.1 failed to install because I had pillow v.8.1.0 installed elsewhere.

Thanks for your comments. now I wonder, if I should uninstall the manually installed libjpeg. Let's see. Thanks so far.