Question

I am currently writing a few custom template tags but for some reason they will not load. My directory structure is as follows:

MyProj
 |
 ----MyApp
     |
     |----templatetags
          |
          |----myapp_tags.py
          |----__init__.py

In myapp_tags.py

from django.template import Library, Node
from myproj.myapp.models import Product

register = Library()

class LatestProductsNode(Node):
    def render(self, context):
        context['recent_products'] = Product.objects.all()[:5]
        return ''

def get_latest_products(parser, token):
    return LatestProductsNode()

get_latest_products = register.tag(get_latest_products)

In settings.py

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.admin',
    'myproj.myapp',
)

In the Template

{% load myapp_tags %}

The error i get when trying to load the page:

Exception Type:     TemplateSyntaxError Exception Value:    

'myapp_tags' is not a valid tag library: Could not load template library from django.templatetags.myapp_tags, No module named myapp_tags

Answer 1

in settings.py, you should never name the project ‘myproj’ explicitely. In INSTALLED_APPS, just use ‘myapp’. Also, you should have this :

TEMPLATE_LOADERS = (
    'django.template.loaders.app_directories.load_template_source',
)

And be sure to have an __init__.py in the myapp folder as well as in templatetags.

Use manage.py shell then from myapp.templatetags import myapp_tags to find out if theres any python error in the myapp_tags.py file.

Also, be sure that myapp_tags.py file name doesnt conflicts with another folder/file in your project.

Hope this helps.