How do I get odd and even values in a Django for loop template?

Question

I have this code

{% for o in some_list %}

Now I want to do some stuff if I am on an even line. How can I do that?

Answer 1

{% for post in posts %}
      {% cycle 'odd' 'even' %}
      {% if cycle == 'odd' %}
        
Odd posts
      {% else %}
        
Even posts
      {% endif %}
    {% endfor %}

OR

{% for post in posts %}
   {% if forloop.counter|divisibleby:2 %}
        
Even posts
      {% else %}
        
Odd posts
      {% endif %}
    {% endfor %}