Which template engine do you use..?

[eluser]Michael Wales[/eluser]
I've been playing with Python Web Framworks lately (primarily, Python and Turbogears). At first it was odd, but I can definitely see the benefits of using a template engine similar in nature to Kid, found within the Turbogears framework.

Essentially, it extends the XML namespace to include a few more tags, thus ensuring your code still validates while providing content for your designer to work with (in a WYSIWYG, like Dreamweaver).

Maybe a code example is the best explanation:

Code:

<div id="users">
  <p><img id="photo" src="default.png" py:attr="{'src':photo_url}" /></p>
  <p py:content="username">User's username would go here.</p>
</div>

This is a very basic example, but essentially - when the designer is working on the site he will see a default image for the user and the text "User's username would go here."

Since the dynamic work is done within the xHTML tag, the chances for the designer screwing things up is minimized - it's much more likely for a designer to delete the yellow "<?" icon that appears in Dreamweaver.

I'm not really sure where I am going with this - just something I noticed and thought was neat. It would probably take me awhile to actually get used to it within a PHP environment.