How to fix removed template tags in Django admin

If you upgraded your version of Django, you may have noticed that some template tags has been removed which may cause issues in the django admin. An example is the length_is filter.

Step 1

Create a new file named customtags.py . The file can be named anything and place it in one of your app folder. In that file, write your custom function you want to overwrite.

In my example, I have placed the file in the app called base and created a folder templatetags

base\templatetags\customtags.py

Step 2

Copy the code for the tag that has been removed and paste it in the customtags.py file

Note: You can find removed tags in previous versions of Django on GitHub

I changed the version of Django to 5.0 and navigated to https://github.com/django/django/blob/stable/5.0.x/django/template/defaultfilters.py#L639C1-L651C1

@register.filter(is_safe=False)
def length_is(value, arg):
    """Return a boolean of whether the value's length is the argument."""
    warnings.warn(
        "The length_is template…