Python 3.2 Encoder JPEG not available

[Sapphire64]

Looks like this is old-school well known problem, but:

running build_ext
--------------------------------------------------------------------
SETUP SUMMARY (Pillow 1.7.8 / PIL 1.1.7)
--------------------------------------------------------------------
version      1.7.8
platform     linux2 3.2.3 (default, Jun 25 2012, 23:10:56)
             [GCC 4.7.1]
--------------------------------------------------------------------
*** TKINTER support not available

--- JPEG support available      <<<<<<<<<<< WOT? O_o
--- ZLIB (PNG/ZIP) support available
--- FREETYPE2 support available
*** LITTLECMS support not available

--------------------------------------------------------------------

I've tried many advices from web like:

sudo apt-get install libjpeg libjpeg-dev libfreetype6 libfreetype6-dev zlib1g-dev

and

# ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib
# ln -s /usr/lib/x86_64-linux-gnu/libfreetype.so /usr/lib
# ln -s /usr/lib/x86_64-linux-gnu/libz.so /usr/lib

Without any success.

System:
Debian wheezy/sid amd64
Python 3.2.3 in virtualenv

PNG encoder works fine.

Tests:

--------------------------------------------------------------------
PIL 1.1.7 TEST SUMMARY 
--------------------------------------------------------------------
Python modules loaded from ./PIL
Binary modules loaded from .
--------------------------------------------------------------------
*** PIL CORE support not installed
*** TKINTER support not installed
--- JPEG support ok
--- ZLIB (PNG/ZIP) support ok
*** FREETYPE2 support not installed
*** LITTLECMS support not installed
--------------------------------------------------------------------
Running selftest:
--- 57 tests passed.

Traceback (most recent call last):
  File "/path/to/venv/lib/python3.2/site-packages/Pillow-1.7.8-py3.2-linux-x86_64.egg/PIL/Image.py", line 381, in _getencoder
    encoder = getattr(core, encoder_name + "_encoder")
AttributeError: 'module' object has no attribute 'jpeg_encoder'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/path/to/venv/lib/python3.2/site-packages/tornado-2.4.1-py3.2.egg/tornado/web.py", line 1021, in _stack_context_handle_exception
    raise_exc_info((type, value, traceback))
  File "/path/to/venv/lib/python3.2/site-packages/tornado-2.4.1-py3.2.egg/tornado/util.py", line 90, in raise_exc_info
    raise exc_info[1].with_traceback(exc_info[2])
  File "/path/to/venv/lib/python3.2/site-packages/tornado-2.4.1-py3.2.egg/tornado/web.py", line 1139, in wrapper
    return method(self, *args, **kwargs)
  File "/path/to/venv/project/project/handlers/DevHandlers.py", line 88, in func
    area.save(admin_image, "JPEG")
  File "/path/to/venv/lib/python3.2/site-packages/Pillow-1.7.8-py3.2-linux-x86_64.egg/PIL/Image.py", line 1448, in save
    save_handler(self, fp, filename)
  File "/path/to/venv/lib/python3.2/site-packages/Pillow-1.7.8-py3.2-linux-x86_64.egg/PIL/JpegImagePlugin.py", line 470, in _save
    ImageFile._save(im, fp, [("jpeg", (0,0)+im.size, 0, rawmode)])
  File "/path/to/venv/lib/python3.2/site-packages/Pillow-1.7.8-py3.2-linux-x86_64.egg/PIL/ImageFile.py", line 451, in _save
    e = Image._getencoder(im.mode, e, a, im.encoderconfig)
  File "/path/to/venv/lib/python3.2/site-packages/Pillow-1.7.8-py3.2-linux-x86_64.egg/PIL/Image.py", line 385, in _getencoder
    raise IOError("encoder %s not available" % encoder_name)
IOError: encoder jpeg not available

[d-schmidt]

The selftest had an error and is showing wrong results, the other thing is just strange. I should work.

[laurentpayot]

Exactly the same bug here with Python 3.2.3 and Ubuntu 12.10. I installed libjpeg8 and libjpeg8-dev to enable JPEG support, but there is an error saying jpeg encoder is not available.

[laurentpayot]

PS: The bug only is only present on my AMD64 machine, jpeg encoder does work on my Intel32 based laptop (also with Python 3.2.3 and Ubuntu 12.10).

[Sapphire64]

Well, this can explain a lot I think. I can confirm that my system is Intel with AMD64 architecture too.

Maybe expected that jpeg libs must be in folder like /usr/lib/i686-linux-gnu/libjpeg.so, not where they are now (/usr/lib/x86_64-linux-gnu/libjpeg.so)?

[Sapphire64]

Yeap, look here:

Python 3.2.3 (default, Jun 25 2012, 23:10:56) 
[GCC 4.7.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform
>>> platform.processor()
''

And now check this in setup.py:

if platform.processor() == "x86_64":
                _add_directory(library_dirs, "/lib64")
                _add_directory(library_dirs, "/usr/lib64")
                _add_directory(library_dirs, "/usr/lib/x86_64-linux-gnu")
            else:
                _add_directory(library_dirs, "/usr/lib/i386-linux-gnu")

[laurentpayot]

I just applied your setup.py modifications and after a Pillow complete re-installation (removing build directory etc.) the jpeg encoder is finally working on my AMD64 machine. Thanks a lot!

[Sapphire64]

I'm glad to hear that. Hope other distributions users will check this patch and it will be merged. Today I was moving my project to Py3.3 server and for another time I have faced this problem. Thanks for noting 'removing build directory', this helped me after I have installed libjpeg62-dev. After all, I hope Pillow's installation process will be improved at least with more friendly error messages.