[Zope] Render image from external method.

[Jason C. Leach]

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>" />

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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