Django template filter

Using Django Mystery Errors
1

Hello everyone, I am trying to create a template filter that converts a date into human-readable information, such as “date since.”

The code for displaying the published date is as follows:
{{ post.published_date|date_since }}.

I am currently encountering an error that I do not understand.

line 10
DAYS_PER_YEAR = 365
IndentationError: unexpected indent

Thanks.

from datetime import datetime
from django import template
from django.utils import timezone


register = template.Library()

"""FILTERS"""

 DAYS_PER_YEAR = 365
 DAYS_PER_MONTH = 30
 DAYS_PER_WEEK = 7

@register.filter(is_safe=True)
def date_since(specific_date):
    #Returns number of days between today and value.
    today = timezone.now().date()
        if isinstance(specific_date, datetime):
           specific_date = specific_date.date()
        diff = today - specific_date
       diff_years = int(diff.days / DAYS_PER_YEAR)
       diff_months = int(diff.days / DAYS_PER_MONTH)
       diff_weeks = int(diff.days / DAYS_PER_WEEK)
       diff_map = [
            ("year", "years", "diff_years",),
            ("month", "months", "diff_months",),
            ("week", "weeks", "diff_weeks",),
            ("day", "days", "diff_days",),
       ]
       for parts in diff_map:
           (interval, intervals, count,) = parts
           if count > 1:
               return_("yesterday") \
               if interval == "day" \
               else _(f"last {interval}")
        if diff.days == 0:
            return_("today")
        else:
            # Date is in the future; return formatted date.
            return f"{specific_date:%B %d, %Y}"
2

Welcome @benjacque !

Your indentation is irregular in multiple places in this code.

The line being flagged has a space in the first column.

You’ve also got a couple other issues with indentation in your function definition.

Python is extremely space-sensitive. You must adhere to the Python indentation requirements.

Side note: For future reference, when requesting assistance with an error, please post the complete error message with the traceback.

3

Thank you. I corrected it once again and it works.