[reportlab-users] Appengine - Reportlab (Get Photo from Model)

[Martinho Arantes]

Hi, i forgot to tell that i´m resizing the images. I made a handler to
upload the image. As far as i know, Google App Engine doesn´t support PIL,
because of low-level (C dependencies), but App Engine accepts images through
the Images Library. I commented the code for upload the image to the
Blobstore and included the same image from my source folder directly. I
wouldn´t say that the image is corrupt.

Please, take a look at the image i uploaded to this site
tinypic.com/r/2ngeont/7

2010/10/5 Henning von Bargen <H.vonBargen at t-p.com>


> > I?m getting errors like this one:

> > File "C:\Users\hp\workspace\x-ray\src\principal.py", line 441, in post

> > image = canvas.ImageReader(StringIO.StringIO(user.photo)) File

> > "reportlab.zip\reportlab\lib\utils.py", line 588, in *init* File

> > "reportlab.zip\reportlab\lib\utils.py", line 582, in *init* RuntimeError:

> > Imaging Library not available, unable to import bitmaps only jpegs

> > fileName=<StringIO.StringIO instance at 0x04A5A030>

> > identity=[ImageReader at 0x4a62290].

>

> Look at the exception traceback. A RuntimeError is thrown in utils.py.

>

> The following code in utils.py is bad coding style IMHO

> as it hides the actual cause and results in a possibly misleading message:

>

> class ImageReader(object):

>    ...

>    def __init__(self, fileName):

>        ...

>                if haveImages:

>                    ...

>                else:

>                    from reportlab.pdfbase.pdfutils import readJPEGInfo

>                    try:

>                        self._width,self._height,c=readJPEGInfo(self.fp)

>                    except:

>                        raise RuntimeError('Imaging Library not available,

> unable to import bitmaps only jpegs')

>                    ...

>

> For a test, you should remove the exception handling shown here.

> Then you'll see what exactly goes wrong in pdfutils.readJPEGInfo.

>

> Just to be sure, you should also dump the actual blob content to a file.

> Maybe it has a jpeg file suffix but isn't standard JPEG?

>

> HTH

> Henning

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