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If you are using PIL(Python Imaging Library) on Mac OS X(Tiger), you will probably have a "decoder jpeg not available" when resizing a jpeg image.
This probably means that PIL doesn't have JPEG support, because libjpeg wasn't found when PIL was being configured.
Here is the solution:- Download, compile and install jpeglib and zlib
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Edit PIL setup.py and change to:
JPEG_ROOT = "/usr/local/include" ZLIB_ROOT = "/usr/local/include"
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Compile:
python setup.py build_ext -i
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Test:
python selftest.py
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If the result is something like this:
"57 tests passed."
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You are ready to go:
python setup.py install
Comments
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Thank you! This worked when nothing else did. sorl-thumbnail finally working.
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Thank you! Although this post is fairly old, it did work for me too when nothing else was working!
My name is Nuno Mariz and this is my weblog. I'm a software engineer, living in Porto, Portugal. 
