How is support for multiple languages implemented in the Django framework?

Django supports multiple languages through the internationalization (i18n) and localization (l10n) mechanisms. Main components include:

• Translation files (.po/.mo): strings in code and templates are marked with special functions (gettext, ugettext_lazy, etc.), and translation files are generated using django-admin makemessages.
• LocaleMiddleware: automatically detects the user's language (via HTTP headers or session) and sets the current language for the request.
• LANGUAGE_CODE and LANGUAGES settings: define the default language and supported languages.
• Template tags and translation functions: enable displaying translated strings in templates.

Example in a template:

{% load i18n %}
<p>{% trans "Hello, world!" %}</p>

Thus, Django makes it easy to create multilingual applications by managing translations and language switching at the request and interface levels.