JPG decoder not included in requirements.txt

[premasagar]

On uploading a JPG to my user profile, the photo was successfully uploaded, but viewing the image gave a 500 error. Presumably, the requirements.txt should include a JPG decoder.

The error:

IOError at /thumb/16x16/images/users/prem_photo.jpg
decoder jpeg not available
Request Method: GET
Request URL:    http://localhost:8000/thumb/16x16/images/users/prem_photo.jpg?crop
Django Version: 1.2.5
Exception Type: IOError
Exception Value:    
decoder jpeg not available
Exception Location: /usr/local/lib/python2.6/dist-packages/PIL/Image.py in _getdecoder, line 385
Python Executable:  /usr/bin/python
Python Version: 2.6.6
Python Path:    ['/home/premasagar/projects/tasket/web', '/usr/lib/pymodules/python2.6', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/local/lib/python2.6/dist-packages', '/usr/local/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/python2.6/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.6/gtk-2.0', '/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode', '../server', '../server']
Server time:    Thu, 7 Apr 2011 12:12:03 +0100

Environment:

Request Method: GET
Request URL: http://localhost:8000/thumb/16x16/images/users/prem_photo.jpg?crop
Django Version: 1.2.5
Python Version: 2.6.6
Installed Applications:
['django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.messages',
 'django.contrib.admin',
 'tasks',
 'frontend',
 'sorl.thumbnail',
 'indexer',
 'paging',
 'sentry',
 'sentry.client']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'utils.middleware.CORSAuthorizationMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'utils.middleware.CORSMiddleware')


Traceback:
File "/usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py" in get_response
  100.                     response = callback(request, *callback_args, **callback_kwargs)
File "../server/tasks/views.py" in thumbs
  381.     im = get_thumbnail(im_obj, size, quality=99, crop=crop)
File "/usr/local/lib/python2.6/dist-packages/sorl/thumbnail/shortcuts.py" in get_thumbnail
  8.     return default.backend.get_thumbnail(file_, geometry_string, **options)
File "/usr/local/lib/python2.6/dist-packages/sorl/thumbnail/base.py" in get_thumbnail
  48.                                    thumbnail)
File "/usr/local/lib/python2.6/dist-packages/sorl/thumbnail/base.py" in _create_thumbnail
  73.         image = default.engine.create(source_image, geometry, options)
File "/usr/local/lib/python2.6/dist-packages/sorl/thumbnail/engines/base.py" in create
  14.         image = self.colorspace(image, geometry, options)
File "/usr/local/lib/python2.6/dist-packages/sorl/thumbnail/engines/base.py" in colorspace
  24.         return self._colorspace(image, colorspace)
File "/usr/local/lib/python2.6/dist-packages/sorl/thumbnail/engines/pil_engine.py" in _colorspace
  43.             return image.convert('RGB')
File "/usr/local/lib/python2.6/dist-packages/PIL/Image.py" in convert
  679.         self.load()
File "/usr/local/lib/python2.6/dist-packages/PIL/ImageFile.py" in load
  189.                 d = Image._getdecoder(self.mode, d, a, self.decoderconfig)
File "/usr/local/lib/python2.6/dist-packages/PIL/Image.py" in _getdecoder
  385.         raise IOError("decoder %s not available" % decoder_name)

Exception Type: IOError at /thumb/16x16/images/users/prem_photo.jpg
Exception Value: decoder jpeg not available

[premasagar]

Out of interest, I tried uploading a GIF and again I got:

IOError at /thumb/16x16/images/users/Sunflower_as_gif_small.gif
encoder jpeg not available
Request Method: GET
Request URL:    http://localhost:8000/thumb/16x16/images/users/Sunflower_as_gif_small.gif?crop
Django Version: 1.2.5
Exception Type: IOError
Exception Value:    
encoder jpeg not available
Exception Location: /usr/local/lib/python2.6/dist-packages/PIL/Image.py in _getencoder, line 401
Python Executable:  /usr/bin/python
Python Version: 2.6.6
Python Path:    ['/home/premasagar/projects/tasket/web', '/usr/lib/pymodules/python2.6', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/local/lib/python2.6/dist-packages', '/usr/local/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/python2.6/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.6/gtk-2.0', '/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode', '../server', '../server']
Server time:    Thu, 7 Apr 2011 12:16:16 +0100

I'm not sure why the error still mentions a JPG decoder. I guess we should let people upload GIFs, but anyway, if a user uploads a file that is not a supported file type, or if anything goes wrong with the image processing, then some kind of controlled error response (in JSON) should be there. 401 Bad Request? Probably a better code out there.

[symroe]

I've never seen this before. A google returns this link: http://effbot.org/zone/pil-decoder-jpeg-not-available.htm

It's an install specific thing, and I'm not sure I can control it in requirements.txt...

[symroe]

Is libjpeg installed?

[premasagar]

I already had libjpeg62 installed (there is no "libjpeg" avail to apt-get). I just installed libjpeg62-dev and still no change.

This post seems relevant:
http://www.eddiewelker.com/2010/03/31/installing-pil-virtualenv-ubuntu/

[premasagar]

Reinstalling PIL according to the explicit sequence in http://www.eddiewelker.com/2010/03/31/installing-pil-virtualenv-ubuntu/ solved this.