Hi--
Follow-up to yesterday's question. Also, thanks to Fredrik Lundh for
off-list assistance. At one point, I was momentarily speechless when I
turned from an email back to the documentation I was reading and noticed
that both were authored by the same, Mr. Lundh. :-)
>From yesterday, I progressed to attempting to create an image object from
within the Python interpreter using the call
ImageTk.PhotoImage(file="filename.jpg"). This call threw an exception:
"IOError: decoder jpeg not available" at line 375 in _getdecoder;
specifically, "raise IOError("decoder %s not available" % decoder_name)" in
file
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/PIL/Image.py".
Mr Lundh offered this advice:
This usually indicates that you've ended up with multiple _imaging.so
binaries on the machine, and that the test and your script picks up
different ones.
Try adding
print Image.core.__file__
to your script and make sure that the output is what you expect.
At this point, my working hypothesis is that I did not install libjpeg
correctly. I'm working on OS X Tiger. What I did was download
"jpegsrc.v8a.tar.gz"; double-click in my download window in Firefox to
untar; move the untarred "jpeg-8" folder to /Application; open Terminal and
cd'ed to /Applications/jpeg-8; finally, I ran "./configure", "make", and
"make install".
It could be--and I don't know--that this install procedure did not correctly
add libjpeg to my Python 2.6 installation or that I need to rebuild
site-packages/PIL/_imaging.so in order to link-in libjpeg. Any direction
would be appreciated.
Thanks.
Mark T.
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