[Image-SIG] PIL/JPEG trouble

[Dinu Gherman]

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Hi, I've just joined this mailing list after running into a problem
that seems to be a reoccurring one, at least if I look into the list
archives. I thought it should not occur anymore after PIL moved to
using distutils, but maybe it's me doing something wrong? Has any-
body else succeeded in compiling PIL with JPEG support on Mac OS X?

Thanks,

Dinu


Forwarded from Pythonmac-SIG:

> Von: Dinu Gherman <gherman@darwin.in-berlin.de>
> Datum: Mo, 05. Aug. 2002  12:05:56 Europe/Berlin
> An: pythonmac-sig@python.org
> Betreff: [Pythonmac-SIG] PIL/JPEG trouble
>
> Hi, I've got some trouble on OS X telling PIL where to find the JPEG
> library. This results in "IOError: decoder jpeg not available" errors.
>
> I've installed JIG's library libjpeg.a into /usr/local/lib and its
> tools into /usr/local/bin (wrjpgcom, rdjpgcom, jpegtran, djpeg, cjpeg).
> I've also tried a configure pass with --with-jpeg=/usr/local/lib but
> all in vain.
>
> I've attached a sample installation script which should automatically
> fetch zlib, jpeg and pil from the net and install them the "canonical"
> way... Below I've also pasted the results of running PIL's
> MiniTest/test.py.
>
> Does anybody have an idea?
>
> Thanks,
>
> Dinu
>
>
> [localhost:Imaging-1.1.3] dinu% python MiniTest/test.py
> *****************************************************************
> Failure in example: _info(Image.open("Images/lena.jpg"))
> from line #24 of test.testimage
> Exception raised:
> Traceback (most recent call last):
>   File "MiniTest/doctest.py", line 499, in _run_examples_inner
>     exec compile(source, "<string>", "single") in globs
>   File "<string>", line 1, in ?
>   File "MiniTest/test.py", line 12, in _info
>     im.load()
>   File "PIL/ImageFile.py", line 140, in load
>     d = Image._getdecoder(self.mode, d, a, self.decoderconfig)
>   File "PIL/Image.py", line 255, in _getdecoder
>     raise IOError("decoder %s not available" % decoder_name)
> IOError: decoder jpeg not available
> *****************************************************************
> Failure in example: type(im.im) # internal image attribute
> from line #31 of test.testimage
> Expected: <type 'None'>
> Got: <type 'NoneType'>
> 1 items had failures:
>    2 of  40 in test.testimage
> ***Test Failed*** 2 failures.
> *** 2 tests of 40 failed.
>
>

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#! /usr/bin/env python


"""install.py - a funky install script.

Sample usage:

  python install.py zlib jpeg pil
  python install.py pil
"""


import os, string, sys
from os.path import basename, join
from urllib import urlopen




###############################################################################
# Package descriptions
###############################################################################

jpeg = {
    "name":     "JPEG Support for PIL",
    "homepage": "http://www.ijg.org",
    "download": "http://www.ijg.org/files/jpegsrc.v6b.tar.gz",
    "install": """\
tar xfz jpegsrc.v6b.tar.gz
cd jpeg-6b
./configure
make
make test
sudo make install
sudo make install-lib
"""}


zlib = {
    "name":     "Zlib",
    "homepage": "http://www.gzip.org/zlib/",
    "download": "http://www.gzip.org/zlib/zlib-1.1.4.tar.gz",
    "install": """\
tar xfz zlib-1.1.4.tar.gz
cd zlib-1.1.4
./configure
make
sudo make install
"""}


pil = {
    "name":     "PythonWare's PIL 1.1.3",
    "homepage": "http://www.pythonware.com/products/python/index.htm",
    "download": "http://www.pythonware.com/downloads/Imaging-1.1.3.tar.gz",
    "install": """\
tar xfz Imaging-1.1.3.tar.gz
cd Imaging-1.1.3
cd libImaging
./configure
make
cd ..
python setup.py build
sudo python setup.py install
"""}



###############################################################################
# Installation 
###############################################################################

def install(packages):
    dir = os.getcwd()

    for p in packages:
        try:
            p = globals()[p]
        except:
            print "Skipping", p
            continue
            
        # get package details
        name = p['name']
        url = p['download']
        instructions = p['install']

        # download, if needed
        path = join(dir, basename(url))
        if not os.path.exists(path):
            print "Downloading", name
            data = urlopen(url).read()
            open(path, "wb").write(data)

        # install
        print "Installing", name
        open('install.sh', 'w').write(instructions)
        os.system('tcsh -f install.sh')




if __name__ == '__main__':
    packages = sys.argv[1:]    
    install(packages)

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