Help with JPEG support with PIL 1.1.5 and OSX

Discussion in 'Python' started by Jack Wu, Sep 22, 2006.

  1. Jack Wu

    Jack Wu Guest


    I've spent a good majority of my day trying to figure out how to have
    PIL 1.1.5 working on my OSX 10.3.9_PPC machine. I'm still stuck and I
    have not gotten anywhere. Could somebody please help me...

    I've scoured all the documentation, google, and mailing lists to no
    avail. I believe the problem may lay in a jpeglib problem with OSX
    10.3.9, or a python paths problem.

    Here is info on my system (note this is not the default Python version
    that comes with OSX):
    Python 2.4.1 (#2, Mar 31 2005, 00:05:10)
    [GCC 3.3 20030304 (Apple Computer, Inc. build 1666)] on darwin

    This email is really long, I've seperated the sections with 3-4 lines
    of spacing.

    Here is my own PIL installation summary, I followed directions in
    README. I am using the most recent install package from the PIL
    website. I also tried using the default JPEG_ROOT=None and JPEG_ROOT
    = "sw/lib", where I was able to locate the jpeglib files.
    running install
    running build
    running build_py
    running build_ext
    version 1.1.5
    platform darwin 2.4.1 (#2, Mar 31 2005, 00:05:10)
    [GCC 3.3 20030304 (Apple Computer, Inc. build 1666)]
    *** TKINTER support not available
    --- JPEG support ok
    --- ZLIB (PNG/ZIP) support ok
    *** FREETYPE2 support not available
    To add a missing option, make sure you have the required
    library, and set the corresponding ROOT variable in the script.

    To check the build, run the script.
    running build_scripts
    running install_lib
    running install_scripts
    changing mode of
    /Library/Frameworks/Python.framework/Versions/2.4/bin/ to
    changing mode of
    /Library/Frameworks/Python.framework/Versions/2.4/bin/ to
    changing mode of
    /Library/Frameworks/Python.framework/Versions/2.4/bin/ to 755
    changing mode of
    /Library/Frameworks/Python.framework/Versions/2.4/bin/ to 755
    changing mode of
    /Library/Frameworks/Python.framework/Versions/2.4/bin/ to
    This file was 212KB.

    I tried running the self-test and this is my output:
    Failure in example: _info("Images/lena.jpg"))
    from line #24 of selftest.testimage
    Exception raised:
    Traceback (most recent call last):
    File "./", line 499, in _run_examples_inner
    exec compile(source, "<string>", "single") in globs
    File "<string>", line 1, in ?
    File "./", line 21, in _info
    File "PIL/", line 180, in load
    d = Image._getdecoder(self.mode, d, a, self.decoderconfig)
    File "PIL/", line 328, in _getdecoder
    raise IOError("decoder %s not available" % decoder_name)
    IOError: decoder jpeg not available
    1 items had failures:
    1 of 55 in selftest.testimage
    ***Test Failed*** 1 failures.
    *** 1 tests of 55 failed.

    I ran "$python -vv -c "import _imaging"" and this was the important output:
    import _imaging # dynamically loaded from
    This file was 962KB.

    The file mentioned above (962KB) was not actually the same
    one that I compiled earlier (212KB). So I figured there must be some
    problem with my python path. I copied the newly compiled version into
    the python PIL directory above and tried again. Same problem on self

    I then tried the Darwin ports py-pil (
    This is the output that I got when installing:
    sudo port install py-pil
    ---> Fetching freetype
    ---> Attempting to fetch freetype-2.1.10.tar.bz2 from
    ---> Verifying checksum(s) for freetype
    ---> Extracting freetype
    ---> Applying patches to freetype
    ---> Configuring freetype
    ---> Building freetype with target all
    ---> Staging freetype into destroot
    ---> Packaging tgz archive for freetype 2.1.10_1
    ---> Installing freetype 2.1.10_1
    ---> Activating freetype 2.1.10_1
    ---> Cleaning freetype
    ---> Fetching jpeg
    ---> Attempting to fetch jpegsrc.v6b.tar.gz from
    ---> Verifying checksum(s) for jpeg
    ---> Extracting jpeg
    ---> Applying patches to jpeg
    ---> Configuring jpeg
    ---> Building jpeg with target all
    ---> Staging jpeg into destroot
    ---> Packaging tgz archive for jpeg 6b_1
    ---> Installing jpeg 6b_1
    ---> Activating jpeg 6b_1
    ---> Cleaning jpeg
    ---> Fetching py-pil
    ---> Attempting to fetch Imaging-1.1.5.tar.gz from
    ---> Verifying checksum(s) for py-pil
    ---> Extracting py-pil
    ---> Applying patches to py-pil
    ---> Configuring py-pil
    ---> Building py-pil with target build
    ---> Staging py-pil into destroot
    ---> Packaging tgz archive for py-pil 1.1.5_1
    ---> Installing py-pil 1.1.5_1
    ---> Activating py-pil 1.1.5_1
    ---> Cleaning py-pil
    This created a file which was 684KB.

    I copied this newly created file into my appropriate
    python PIL directory and ran self-test again, and it still had the
    same error.

    Another test I did was to remove completely from the PIL
    directory in Python. When I ran (python -vv -c "import _imaging"),
    this was the output:
    Traceback (most recent call last):
    File "<string>", line 1, in ?
    ImportError: No module named _imaging
    But still had the same output as before (JPEG decode error).

    I also downloaded jpeglib(jpeg-6b) and built it myself (succesfully),
    and passed the lib directory for JPEG_ROOT in the PIL installer, but
    that didn't have any different self-test results.

    It is also very strange that i can set the JPEG_ROOT to be anything,
    even something ficticious and the installer will report 'no support
    errors' for JPEG.

    Another strange thing is a discprency in JPEG libraries, py-pil seems
    to use JPEG while PIL seems to reference only LIBJPEG.

    Running a search on my HD for turns up 4 sources:
    1) /opt/local/lib/python2.4/site-package/PIL/ (684KB - this
    was generated by the py-pil install)
    2) /opt/local/var/db/dports/software/py-pil/1.1.5_1/opt/lcoal/lib/python2.4/site-packages/PIL/
    (684KB - this was generated by the py-pil install)
    3) Desktop/Imaging-1.1.5/PIL/ (212KB - this was generated
    by the PIL Imaging isntall)
    4) Desktop/Imaging-1.1.5/build/lib.darwin-7.9.0-Power_macintosh-2.4/
    (212KB - this was generated by the PIL Imaging install)

    My goal is to get the self-test working properly. Somebody please help!
    Jack Wu
    Jack Wu, Sep 22, 2006
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