# Django 4.2.11 documentation

# Source code for django.forms.renderers

    import functools
    from pathlib import Path

    from django.conf import settings
    from django.template.backends.django import DjangoTemplates
    from django.template.loader import get_template
    from django.utils.functional import cached_property
    from django.utils.module_loading import import_string

    @functools.lru_cache
    def get_default_renderer():
        renderer_class = import_string(settings.FORM_RENDERER)
        return renderer_class()

    class BaseRenderer:
        # RemovedInDjango50Warning: When the deprecation ends, replace with
        # form_template_name = "django/forms/div.html"
        # formset_template_name = "django/forms/formsets/div.html"
        form_template_name = "django/forms/default.html"
        formset_template_name = "django/forms/formsets/default.html"

        def get_template(self, template_name):
            raise NotImplementedError("subclasses must implement get_template()")

        def render(self, template_name, context, request=None):
            template = self.get_template(template_name)
            return template.render(context, request=request).strip()

    class EngineMixin:
        def get_template(self, template_name):
            return self.engine.get_template(template_name)

        @cached_property
        def engine(self):
            return self.backend(
                {
                    "APP_DIRS": True,
                    "DIRS": [Path(__file__).parent / self.backend.app_dirname],
                    "NAME": "djangoforms",
                    "OPTIONS": {},
                }
            )

    class DjangoTemplates(EngineMixin, BaseRenderer):
        """
        Load Django templates from the built-in widget templates in
        django/forms/templates and from apps' 'templates' directory.
        """

        backend = DjangoTemplates

    class Jinja2(EngineMixin, BaseRenderer):
        """
        Load Jinja2 templates from the built-in widget templates in
        django/forms/jinja2 and from apps' 'jinja2' directory.
        """

        @cached_property
        def backend(self):
            from django.template.backends.jinja2 import Jinja2

            return Jinja2

    class DjangoDivFormRenderer(DjangoTemplates):
        """
        Load Django templates from django/forms/templates and from apps'
        'templates' directory and use the 'div.html' template to render forms and
        formsets.
        """

        # RemovedInDjango50Warning Deprecate this class in 5.0 and remove in 6.0.

        form_template_name = "django/forms/div.html"
        formset_template_name = "django/forms/formsets/div.html"

    class Jinja2DivFormRenderer(Jinja2):
        """
        Load Jinja2 templates from the built-in widget templates in
        django/forms/jinja2 and from apps' 'jinja2' directory.
        """

        # RemovedInDjango50Warning Deprecate this class in 5.0 and remove in 6.0.

        form_template_name = "django/forms/div.html"
        formset_template_name = "django/forms/formsets/div.html"

    class TemplatesSetting(BaseRenderer):
        """
        Load templates using template.loader.get_template() which is configured
        based on settings.TEMPLATES.
        """

        def get_template(self, template_name):
            return get_template(template_name)