如何過濾jinja2模板中的集合？

Question

我有namedtuples的集合，它是這樣的：

[('mountpoint=X',state='UP'),(mountpoint='Y',state='DOWN'),(mountpoint='Z',state='DOWN'...)] 

我通過這個集合到我的模板之一。我想根據狀態過濾該集合。嘗試了以下無濟於事

{% for state in states|selectattr('state','down') %} 
TemplateRuntimeError: no test named 'down' 

    {% for state in states|selectattr(state='down') %} 
FilterArgumentError: Missing parameter for attribute name 

    {% for state in states|select(state='down') %} 
No error, but doesn't filter at all. 

Answer 1

使用equalto測試：

{% for state in states|selectattr('state', 'equalto', 'down') %}