Rendering of list/table data with a template

Hello,

I'm still trying to figure out what is the correct way to render data in a 
template that comes from a list, e.g. to produce a table.

I have figured out a way, but I got no idea if that's the way to go:

    <table>
      <tr t:render="table_row"><td><t:slot name="table_content" /></td></tr>
    </table>

with that renderer:

    @renderer
    def table_row(self, request, tag):
        rows = ["A", "B", "C"]
        
        output_list = []
        for row in rows:
            t = tag.clone()
            t.fillSlots(table_content=row)
            output_list.append(t)
        return output_list

Is that how it should be done in twisted templating?

Thanks,

Florian