django-jinja2-globals

Django Jinja2 Globals is a way to register all the global functions you need in your templates to do perform Python operations inside your templates.

After Initializing templates configuration in project's settings.py

TEMPLATES = [
{
    'BACKEND': 'django_jinja.backend.Jinja2',
    "DIRS": ["PROJECT_ROOT_DIRECTORY", "..."],
    'APP_DIRS': True,
    'OPTIONS': {
        'match_extension': '.html',
        'context_processors': [
            'django.template.context_processors.request',
            'django.template.context_processors.debug',
            'django.template.context_processors.i18n',
            'django.template.context_processors.media',
            'django.template.context_processors.static',
            'django.template.context_processors.tz',
        ],
        'globals': {
        },
        'extensions': DEFAULT_EXTENSIONS + [
            'pipeline.templatetags.ext.PipelineExtension',
        ],
    },
},
{
    'BACKEND': 'django.template.backends.django.DjangoTemplates',
    'DIRS': [],
    'APP_DIRS': True
},
]

Create a file app_template_globals.py in your project's main directory and write all your global functions inside that file which you will need in your templates.

Create a dict and put all the function signature inside that dict:

_template_globals = {}
for object_name in dir(app_template_globals):
_obj = getattr(app_template_globals, object_name)
if callable(_obj) and not object_name.startswith('__'):
    _template_globals[object_name] = _obj.__module__ + '.' + _obj.__qualname__

Once the _template_globals dict is prepared update the Actual TEMPLATES globals:

TEMPLATES[0]['OPTIONS']['globals'].update(_template_globals)

And you're done, now you can use all the global functions inside your templates by just calling them like python functions.

In the same manner you can register jinja2 constants and jinja2 filters. Enjoy :)