Jason C. Leach schrieb:

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.

Yes, you have to link to the image in your HTML code - just like any other image you see. (Only a small popolation of browsers support inline images - and these only really work for fairly small images - so this isnt an option for you I guess) <img src="/path/to/your/script" width... height... alt... /> If you need parameters to render the image, either put them into the URL (ZTUtils.make_query() can help here) or in the SESSION. Btw, you might be confused by zopes Image objects which behave in a dual way. When "called" inside your template, they output a HTML image-tag with a link to their URL. Accessing the URL however, produces the binary data of that image. Regards Tino