<head> {% for item in seq %} <!-- meta for {{item}} --> {% set key, value = call(item) %} <meta name="{{key}}" content="{{value}}"> {% endfor %} </head> <body> {%set navigation = [('index.html', 'Index'), ('about.html', 'About')] %} {% set navigation %} <li><a href="/">Index</a></li> <li><a href="/downloads">Downloads</a></li> {% endset %} </body>