Django: 'current_tags' is not a valid tag library

Question

I have a small Django project I received from a friend. The code works perfectly on his system. However, on my system I get the following error message when running the serv

Answer 1

Maybe someone will find this useful: somehow I had named the directory 'templatetags ' instead of 'templatetags', that is -- with a space at the end. Took hours to finally realize.

Answer 2

I would suggest the following:

1. (Most likely) You haven't installed one of the dependencies of your tag library. Check the imports inside the current_tags.py module.

2. Make sure the application that includes the tag library is registered in settings.py under INSTALLED_APPS.

3. Make sure that you can successfully import the tag library.

   python manage.py shell
   >>> from app.templatetags import current_tags
   

   This boils down what the following link recommends, which is that the error itself tends to mislead you about where it's looking for a template from. It silently ignores errors on import, which means current_tags.py itself might have a syntax error or another reason why it raises ImportError.

If everything else fails, check this link: http://www.b-list.org/weblog/2007/dec/04/magic-tags/

Answer 3

For others facing this . Suppose your App name is MyApp and your tag folder name is templatetags then in settings.py you should have :

INSTALLED_APPS = [
'MyApp',
'MyApp.templatetags'
]

Both your django app and your tag folder which is under your app package are needed there.

-> MyApp
    ---> models.py
    ---> views.py
    ---> templatetags
      -----> __init__.py
      -----> app_filters.py

And in your template file :

{% load app_filters %}

Also app_filters.py be like :

# coding=utf-8
from django import template

register = template.Library()


@register.filter(name='get_item')
def get_item(dictionary, key):
    return dictionary.get(key)

check all above steps and you may find the issue.

Answer 4

In my case it was - I am using

@register.inclusion_tag('template-to-use.html')

I forgot to create that template and right away it started working. I know above answers are more related to most of the issues - but hope maybe someone find it useful. It should have gotten to me:

Template does not exist

but it did not and this worked.

Answer 5

For me, it was the mistake of putting quotes around the library name in load tag.

WRONG: {% load 'library_name' %}

CORRECT: {% load library_name %}

Refer to other answers too. I solved a couple of those problems too before landing here.

Answer 6

I was getting the same error but for a different reason so I'll tell you (in case someone else comes the same problem).

I had everything right but I had my custom tag inside a folder named template_tags and after a long search I found out that it had to be templatetags, and now it works. So check the folder name is exactly templatetags.