wtform field maker for jinja2 macro

gistfile1.mustache

{% macro field(field, cls='') -%}
<p>{{field.label()}}</p>
<p>{{field(class_ = cls)}}</p>
{%if field.errors%}
    <ul class='errors'>
        {%for error in field.errors%}
            <li class='error'>{{error}}</li>
        {%endfor%}
    </ul>
{%endif%}
{%- endmacro %}