[Zope] Render image from external method.

[Peter Bengtsson]

On 2/16/06, Jason C. Leach <jason.leach at gmail.com> wrote:
> Hi,
>
> I'm wondering how I can render an image from an external method
> without creating a permanent image object in Zope?  What I have is a
> python script I call in my ZPT.  The python script does some things,
> and calls an external method that returns PNG image data. If I do
> tal:attributes="src python:python_script()" What I get is the string
> containing the PNG image data, but it's not rendered.
>
> An example of what I get is: <img src="?PNG <PAGE OF BINARY DATA>" />
>
Correct use would be
<img src="python_script" alt="Some img" />
The *browser* will then call the image, not your ZPT code.

> Any ideas?  I don't really want to create a permanent image object,
> and I know that will work because I have used it to create thumbnail
> images before.
>
> Thanks,
> Jason.
>
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