[Pythonmac-SIG] Trouble installing Python Imaging Library on Mac OS X

[Daniel Lord]

It's been some time since I worked through this for 2.4, but IIRC,
one has to modify the PIL make to ensure it finds libjpeg after you  
have installed it.

How I did that I cannot recall just now off the cuff, so when I have  
time at some point I can try to dig it up.
But in the mean time, if you are industrious and read the build notes  
for PIL,
those pesky details might still be in there somewhere and clue you in  
to set it up properly so libjpeg is found by PIL on the build.
If even I was able to solve it, I have no doubt that, with  
application, you will also and in a shorter time than I.

Daniel

On Jul 23, 2007, at 9:22 PM, Ritesh Nadhani wrote:

> Hello
>
> So I want to install Python Imaging Library on my Mac OS X. I followed
> the tutorial steps by step. When I executed:
>
> IOError: decoder jpeg not available
>
> I got the error. Further Googling pointed me to the website:
> http://www.kyngchaos.com/macosx/install/libjpeg
>
> I downloaded the libtool updated linked there and unzipped it. It says
> that: Then, you need to update the libtool file in the source.
>
> Though I have no clue what does that mean. Unzipping it gave me two
> file ltconfig and ltconfig.sh. Running the sh file gave me libtool
> version mismatch error. Doing a search of system I found that there is
> another ltconfig in /usr/share/libtool. Assuming that this file needs
> to be updated with the one provided in the zip, I copied the original
> ltconfig.sh to ltconfig.sh.bak and copied the new one to the folder.
>
> The I followed the same steps as mentioned up there and the
> compilation and installation seems to have gone correctly.
>
> But again when I do selftest.py, I get:
>
> Exception raised:
> Traceback (most recent call last):
>   File "./doctest.py", line 499, in _run_examples_inner
>     exec compile(source, "<string>", "single") in globs
>   File "<string>", line 1, in <module>
>   File "./selftest.py", line 22, in _info
>     im.load()
>   File "PIL/ImageFile.py", line 180, in load
>     d = Image._getdecoder(self.mode, d, a, self.decoderconfig)
>   File "PIL/Image.py", line 375, in _getdecoder
>     raise IOError("decoder %s not available" % decoder_name)
> IOError: decoder jpeg not available
> 1 items had failures:
>    1 of  57 in selftest.testimage
> ***Test Failed*** 1 failures.
> *** 1 tests of 57 failed.
>
> Moreover, sudo python setup.py build_ext -i, give me:
>
> --------------------------------------------------------------------
> PIL 1.1.6 BUILD SUMMARY
> --------------------------------------------------------------------
> version       1.1.6
> platform      darwin 2.5 (r25:51918, Sep 19 2006, 08:49:13)
>               [GCC 4.0.1 (Apple Computer, Inc. build 5341)]
> --------------------------------------------------------------------
> --- TKINTER support ok
> --- JPEG support ok
> --- ZLIB (PNG/ZIP) support ok
> --- FREETYPE2 support ok
> --------------------------------------------------------------------
> To check the build, run the selftest.py script.
>
> So it seems that the libraries were correctly found.
>
> -- 
> Ritesh
> http://www.riteshn.com
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