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Django solid_i18n urls

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solid_i18n contains middleware and url patterns to use default language at root path (without language prefix).

Default language is set in settings.LANGUAGE_CODE.

Deprecation notice

Starting from Django 1.10, built-in i18n_patterns accept optional argument prefix_default_language. If it is False, then Django will serve url without language prefix by itself. Look docs for more details.

This package can still be useful in following cases (look below for settings details):

  • You need settings.SOLID_I18N_USE_REDIRECTS = True behaviour
  • You need settings.SOLID_I18N_HANDLE_DEFAULT_PREFIX = True behaviour
  • You need settings.SOLID_I18N_DEFAULT_PREFIX_REDIRECT = True behaviour
  • You need settings.SOLID_I18N_PREFIX_STRICT = True behaviour

In all other cases no need in current package, just use Django>=1.10.


  • python (2.7, 3.4, 3.5)
  • django (1.8, 1.9, 1.10)

Release notes



There are two modes:

  1. settings.SOLID_I18N_USE_REDIRECTS = False (default). In that case i18n will not use redirects at all. If request doesn't have language prefix, then default language will be used. If request does have prefix, language from that prefix will be used.

  2. settings.SOLID_I18N_USE_REDIRECTS = True. In that case, for root paths (without prefix), django will try to discover user preferred language. If it doesn't equal to default language, redirect to path with corresponding prefix will occur. If preferred language is the same as default, then that request path will be processed (without redirect). Also see notes below.

Quick start

  1. Install this package to your python distribution:

     pip install solid_i18n
  2. Set languages in

     # Default language, that will be used for requests without language prefix
     LANGUAGE_CODE = 'en'
     # supported languages
     LANGUAGES = (
         ('en', 'English'),
         ('ru', 'Russian'),
     # enable django translation
     USE_I18N = True
     # Optional. If you want to use redirects, set this to True
  3. Add SolidLocaleMiddleware instead of LocaleMiddleware to MIDDLEWARE_CLASSES:

  4. Use solid_i18n_patterns instead of i18n_patterns

     from django.conf.urls import patterns, include, url
     from solid_i18n.urls import solid_i18n_patterns
     urlpatterns = solid_i18n_patterns(
         url(r'^about/$', 'about.view', name='about'),
         url(r'^news/', include(news_patterns, namespace='news')),
  5. Start the development server and visit to see english content. Visit to see russian content. If SOLID_I18N_USE_REDIRECTS was set to True and if your preferred language is equal to Russian, request to path will be redirected to But if preferred language is English, will be shown.


    If True, redirect to url with non-default language prefix from url without prefix, if user's language is not equal to default. Otherwise url without language prefix will always render default language content (see behaviour section and notes for details).

    If True, both urls /... and /en/... will render default language content (in this example 'en' is default language). Otherwise, /en/... will return 404 status_code.

    If True, redirect from url with default language prefix to url without any prefix, i.e. redirect from /en/... to /... if 'en' is default language.

    Experimental. If True, paths like /my-slug/ will call your view on that path, if language my-slug doesn't exists (here my is supported language).


      LANGUAGES = (
          ('en', 'English'),
          ('my', 'Burmese'),
      urlpatterns = solid_i18n_patterns('',
          url(r'^my-slug/$', some_view),

    If SOLID_I18N_PREFIX_STRICT=False, then url /my-slug/ will respond with 404, since language my-slug is not found. This happens, because we have a registered language tag my. Language tag can have form like this:


    So django in this case tries to find language 'my-slug'. But it fails and that is why django respond 404. And your view some_view will not be called.

    But, if we set SOLID_I18N_PREFIX_STRICT=True, then resolve system will get language only from exact 'my' prefix. In case of /my-slug/ url the prefix is not exact, and our some_view will be found and called.

Example site

Located here, it is ready to use, just install solid_i18n (this package):

pip install solid_i18n

clone example site:

git clone

step in example/ and run development server:

cd django-solid-i18n-urls/example
python runserver


  • When using SOLID_I18N_USE_REDIRECTS = True, there is some nasty case. Suppose django has determined user preferred language incorrectly (maybe in user's browser preferred language is not equal to his realy preferred language, because for example it is not his computer) and it is Russian. Then on access to url without prefix, i.e. '/', he will be redirected to '/ru/' (according to browsers preferred language). He wants to look english content (that is default language), but he can't, because he is always being redirected to '/ru/' from '/'. To avoid this, it is needed to set preferred language in his cookies (just <a href="{{ specific language url}}"> will not work). For that purporse django's set_language redirect view shall be used. See example in this package.

  • Of course, you must specify translation for all languages you've marked as supported. For details look here:

  • Don't mix together settings SOLID_I18N_HANDLE_DEFAULT_PREFIX and SOLID_I18N_DEFAULT_PREFIX_REDIRECT. You should choose only one of them.


Use default language for urls without language prefix.




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