[Image-SIG] PIL with JPEG support on Windows: Error Writing JPEG file

[Laura & Edward Cannon]

there are windows binary packages for both python and PIL available
(http://www.pythonware.com/products/pil/) and I have used these on XP
and Vista for years with 0 problem. I don't need Cygwin or Mingw32 or
anything else, just install the python and then install the binary. I
do jpeg all the time.

On Tue, Mar 24, 2009 at 9:15 AM, Bryan Jeal <bryan at hideawaystudios.com> wrote:
> Hello,
>
> GOAL: Have a website built on the Django framework running under Windows
> Server 2003 (Apache with mod_python and MySQL) be able to upload pictures
> and then create a tinted thumbnail using PIL. I have all the code working
> and I have everything (python, PIL, django, apache and MySQL) setup and
> working on a linux machine; however, I HAVE to get it working on Windows.
>
> PROBLEM: PIL with Jpeg support on Windows...
>
> After much fighting with the Jpeg Library and PIL here is what I have
> accomplished:
>
> Step 1: From Windows: Install python-2.5.4.msi with default settings,
> install Mingw32 and install Cygwin
>
> Step 2: Start Cygwin and extract, './configure --enable-shared
> --enable-static CC="gcc -mno-cygwin" CXX="gcc -mno-cygwin"', make, make -n
> install, make -n install-lib for jpeg-6b and extract, ./configure, make,
> make install for zlib
>
> Step 3: From Windows: extract Imaging-1.1.6.tar.gz and edit setup.py to
> point to jpeg-6b and zlib library locations (ex. JPEG_ROOT =
> "C:\\cygwin\\usr\\local\\src\\jpeg-6b\\.libs")
>
> Step 4: From Windows: 'python setup.py build -c mingw32 install' the Imaging
> 1.1.6 package
>
> Step 5: From Windows: 'python selftest.py' (NOTE: When building Imaging
> 1.1.6 jpeg and zlib support are OK) 57 tests passed for Imaging 1.1.6
> package
>
> Step 6: From Windows: 'python' then:
>  >>> import Image
>  >>> im = Image.open('c:/temp/testimage.jpg')
>  >>> im.size[0]
>             (result: 932)
>  >>> tmpFile = open('C:/temp/temp_win.jpg', 'w')
>  >>> im.save(tmpFile, 'JPEG', quality=90)                       (result: See
> Below)
> Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
>  File "C:\Python25\lib\site-packages\PIL\Image.py", line 1405, in save
>    save_handler(self, fp, filename)
>  File "C:\Python25\lib\site-packages\PIL\JpegImagePlugin.py", line 409, in
> _save
>    ImageFile._save(im, fp, [("jpeg", (0,0)+im.size, 0, rawmode)])
>  File "C:\Python25\lib\site-packages\PIL\ImageFile.py", line 491, in _save
>    s = e.encode_to_file(fh, bufsize)
> IOError: [Errno 0] Error
>
> After finally getting over the _imaging C module is not installed (even
> though an _imaging.dll existed - Python2.5 seems to only like _imaging.pyd)
> and successfully opening and reading a JPEG (I had numerous other errors
> when I tried to get this working before) file I am so very lost. Please
> help!
>
> Sincerely,
>
> Bryan
>
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