Python Jinja 中的语法if any() if all() in object

1.摘要

我找不到，像if any() in object/if all() in object这样的表达式在JJIA2中的正确语法是什么.

2.MCVE

• Live demo on Repl.it:

  """Jinja2 if any() in object MCVE."""
  from jinja2 import Template
  
  KIRA_BLOCK = """
  {% if 14 in range(1,5) or 4 in range(1,5) or 7 in range(1,5) %}
      Kira Goddess!
  {% endif %}
  """
  
  print(Template(KIRA_BLOCK).render())
  
  

如何才能在没有重复代码的情况下获得相同的结果？

3.无能为力

1. 我试着在谷歌、GitHub和Jinja documentation上搜索我的问题的答案和类似的例子

2. 我不知道怎么用Jinja built-in filters来解决我的问题

3. 我试了select()滤镜，就像this answer on Stack Overflow中推荐的那样.就像这样:

   KIRA_BLOCK = """
   {% if (14,4,7)|select|first in range(1,5) %}
       Kira Goddess!
   {% endif %}
   """
   

4. 我try 注册一个自定义的any()过滤器，就像在Stack Overflow上的同一个答案中所建议的那样.就像这样:

   """Jinja2 if any() in object MCVE."""
   from jinja2 import Environment
   from jinja2 import Template
   
   
   environment = Environment()
   
   environment.filters["any"] = any
   
   KIRA_BLOCK = """
   {% if (14,4,7)|any in range(1,5) %}
       Kira Goddess!
   {% endif %}
   """
   
   
   print(Template(KIRA_BLOCK).render())
   
   

4.真实例子

预防XY problem:

我在静态站点生成器Pelican中使用类似的模板.示例:

{# [INFO] If any of the classes "attention", "caution" or "warning" exists in my article, I add specific styles #}
{% if "class=\"attenion\"" in article.content or if "class=\"caution\"" in article.content or if "class=\"warning\"" in article.content %}
    <link rel="preload" href="path/to/css/third-party/Admonition/admonition-warning.min.css" as="style" onload="this.rel='stylesheet'">

{# [INFO] Elif all classes "faq", "help" and "question" exists in my article, I add another styles #}
{% elif "class=\"faq\"" in article.content and if "class=\"help\"" in article.content and if "class=\"question\"" in article.content %}
    <link rel="preload" href="path/to/css/third-party/Admonition/admonition-question.min.css" as="style" onload="this.rel='stylesheet'">
{% endif %}

我不明白如何从这些模板中删除硬编码.

谢谢.