python多维数组遍历问题：

net_interfaces:
{'lo0': {'name': 'lo0', 'ip': 'fe80::1%lo0', 'bytes_sent': 79486408, 'bytes_recv': 79486408, 'packets_sent': 59982, 'packets_recv': 59982, 'errors_in': 0, 'errors_out': 0, 'dropped_in': 0, 'dropped_out': 0}}

现在想遍历这个字典：

<table class="table">
   <thead>
   <tr>
    <th>Interface</th>
    <th>IP</th>
    <th>RX/s</th>
    <th>TX/s</th>
  </tr>
 </thead>
 <tbody>
 {% for ni in net_interfaces %}
   <tr>
   <td>{{ ni }}</td>
   <td>{{ ni.ip }}</td>
   <td>{{ ni.send_rate|default(0)|filesizeformat }}</td>
   <td>{{ ni.recv_rate|default(0)|filesizeformat }}</td>
   </tr>
   {% endfor %}
   </tbody>
</table>

但是这样遍历数组好像不行耶，求指点