[Zope] python script returning a 'rendered' zpt

I need to right a script that will return a zpt. However, I need the script to feed the zpt some values and then have zope returned the rendered zpt. I hope this is possible. For example, lets say I have something like this in a zpt <div tal:contents="somevariable"> blah </div> My python script with have something like this: somevariable = "this is a test" How can I get the script to returned the 'rendered' zpt? -- David Bear College of Public Programs/ASU 411 N Central, Phoenix, AZ 85004