PIL problem after installation

[Lad]

I installed PIL under Linux but now when I try it I get the error:

decoder jpeg not available
How can I correct that problem?

Thank you for help
L.

[Fredrik Lundh]

Re: PIL problem after installation

Lad wrote:
[color=blue]
> I installed PIL under Linux but now when I try it I get the error:
>
> decoder jpeg not available
> How can I correct that problem?[/color]

if you built PIL yourself, the setup script told you how to fix this.

- make sure you have right libraries installed (see the
"prerequisi tes" section in the README)

- run setup and read the BUILD SUMMARY report carefully

- if the setup script cannot find a component, you'll have to edit
the setup.py file and set the appropriate ROOT variable. see in-
structions in the setup.py file for details.

if you got a binary release, complain to the distributor.

</F>

[vasudevram]

Re: PIL problem after installation


Probably the jpeg library - libjpeg is not present on your system.
Search Google for it, then download and install it. Try
http://rpmfind.net also to find it:

http://rpmfind.net/linux/rpm2html/se...submit=Search+...

But Fredrik's advice is very good - whenever installing a software
package, make sure to read the installation guide, release notes, etc -
carefully, and then do accordingly. This can save you a lot of time and
rework.

-------------------------------------------------------------------------------------------

Vasudev Ram
Independent software consultant
Personal site: http://www.geocities.com/vasudevram
PDF conversion tools: http://sourceforge.net/projects/xtopdf
-------------------------------------------------------------------------------------------





Fredrik Lundh wrote:[color=blue]
> Lad wrote:
>[color=green]
> > I installed PIL under Linux but now when I try it I get the error:
> >
> > decoder jpeg not available
> > How can I correct that problem?[/color]
>
> if you built PIL yourself, the setup script told you how to fix this.
>
> - make sure you have right libraries installed (see the
> "prerequisi tes" section in the README)
>
> - run setup and read the BUILD SUMMARY report carefully
>
> - if the setup script cannot find a component, you'll have to edit
> the setup.py file and set the appropriate ROOT variable. see in-
> structions in the setup.py file for details.
>
> if you got a binary release, complain to the distributor.
>
> </F>[/color]

[Lad]

Re: PIL problem after installation


Fredrik Lundh wrote:[color=blue]
> Lad wrote:
>[color=green]
> > I installed PIL under Linux but now when I try it I get the error:
> >
> > decoder jpeg not available
> > How can I correct that problem?[/color]
>
> if you built PIL yourself, the setup script told you how to fix this.
>
> - make sure you have right libraries installed (see the
> "prerequisi tes" section in the README)
>
> - run setup and read the BUILD SUMMARY report carefully
>
> - if the setup script cannot find a component, you'll have to edit
> the setup.py file and set the appropriate ROOT variable. see in-
> structions in the setup.py file for details.[/color]

Fredrik,
Thank you for the reply.
So I did the following:

1.
I downloaded jpeg (from ftp://ftp.uu.net/graphics/jpeg/ ) source
libraries( file jpegsrc.v6b.tar .gz) and installed them. Now in
/usr/local/lib I have the following files: cjpeg
,djpeg,jpegtran ,rdjpgcom and wrjpgcom
2.
I opened setup.py file in Imaging 1.1.5 directory
and changed JPEG_ROOT =None into
JPEG_ROOT = "/usr/local/lib/"

3.ran python setup.py build_ext -i
but it still says

*** JPEG support not available

What did I wrong?
Can you please help?
Thank you
L.

[peter]

Re: PIL problem after installation

I had similar problems a couple of months back when I was teaching
myself Tkinter and PIL. I wrote up my experiences here:-

http://www.aqzj33.dsl.pipex.com/how_i_learned_tkinter/contents.htm

If you look at the section on Images you will see how I eventually
solved it (with bucket loads of help from this forum)

Good luck

Peter

[Fredrik Lundh]

Re: PIL problem after installation

Lad wrote:
[color=blue]
> I downloaded jpeg (from ftp://ftp.uu.net/graphics/jpeg/ ) source
> libraries( file jpegsrc.v6b.tar .gz) and installed them. Now in
> /usr/local/lib I have the following files: cjpeg
> ,djpeg,jpegtran ,rdjpgcom and wrjpgcom[/color]

cjpeg, djpeg etc are executables, not libraries. if you have them under
/usr/local/lib, something's not quite right.

to save some time, I suggest looking for a jpeg-dev or jpeg-devel
package in the package repository for your platform.

</F>

[Lad]

Re: PIL problem after installation


Fredrik Lundh wrote:[color=blue]
> Lad wrote:
>[color=green]
> > I downloaded jpeg (from ftp://ftp.uu.net/graphics/jpeg/ ) source
> > libraries( file jpegsrc.v6b.tar .gz) and installed them. Now in
> > /usr/local/lib I have the following files: cjpeg
> > ,djpeg,jpegtran ,rdjpgcom and wrjpgcom[/color]
>
> cjpeg, djpeg etc are executables, not libraries. if you have them under
> /usr/local/lib, something's not quite right.
>
> to save some time, I suggest looking for a jpeg-dev or jpeg-devel
> package in the package repository for your platform.
>
> </F>[/color]

Hello Fredrik,
Thank you for your reply.
I installed jpeg-devel package and now selftest.py worked!
But I want to use PIL in my Python program( Django) running under
Apache. What permissions must I use for which files?
Thank you very much for your help.
regards,
L,