chameleon vs. zpt compatibility

[runyaga]

See something like this in customer template which appears to work on zpt but not in chameleon.

        <form tal:attributes="action python:context.absolute_url()+'/'+template.id"
              class="enableAutoFocus"
              method="post"
              id="login_form"
              tal:condition="python:auth">

python:auth throws a NameError in chamelon, it requires a space. not sure you want to fix that or not.
but it did work in zpt, crazy enough.