Here’s the folder structure:

homepage (this is the Django app)
|
|templatetags
|  __init__.py
|  shamsi_tags.py

The content of shamsi_tags.py:

from datetime import datetime

from django import template

from jdatetime import datetime as jdatetime

register = template.Library()


@register.simple_tag
def shamsi_date():
    """
    This template tag returns the current date in Shamsi format.
    """
    now = datetime.now()
    shamsi_date = jdatetime.fromgregorian(now.year, now.month, now.day)
    return shamsi_date.strftime('%Y/%m/%d')

The index.html:

{% load shamsi_tags %}
...
<div>{{ shamsi_date }}</div>
...

And nothing displays. I check the page source and it shows <div></div>.

The rest of the page is displaying correctly so I guess there’s nothing wrong with the URL or view.

Obviously jdatetime is installed.

It is Django 5.0.6 on Windows.

I’m sure this is something easy but I can’t figure it out.