Introduction

Macros are a way to define a chunk of presentation in one template, and share it in others. Changes to the macro are immediately reflected in all of the places, that share it.

Such, a developer can easily write some sort of ‘page-skeleton’ (the macro), which can be reused in other pages to take care, for instance, for a certain and consistent look-and-feel of a whole site with less maintenance.

Technically, macros are made available by METAL, a Macro Expansion for TAL, which ships with nearly every Zope installation. They can be used in Zope Page Templates. See the TAL and METAL pages for details.