gistfile1.py

{% if ctx.tags %}
  <p class=tags>This entry was tagged
    {% for tag in ctx.tags|sort(case_sensitive=true) %}
      {%- if not loop.first and not loop.last %}, {% endif -%}
      {%- if loop.last and not loop.first %} and {% endif %}
      <a href="{{ link_to('tag', tag=tag) }}">{{ tag }}</a>
    {%- endfor %}
  {% endif %}