url(r'^language/(?P<lang>.+)$', 'language_with_lang', name='language_with_lang'),
url(r'^language$', 'language_without_lang', name='language_without_lang'),
url(r'^bad_language$', 'language_with_lang', name='bad_language_with_lang'),
url(r'^language/(?P<lang>.+)$', 'language_with_lang', name='language_with_lang'),
url(r'^language$', 'language_without_lang', name='language_without_lang'),
url(r'^bad_language$', 'language_with_lang', name='bad_language_with_lang'),