def is_language_prefix_patterns_used(self):
"""
Returns `True` if the `LocaleRegexURLResolver` is used
at root level of the urlpatterns, else it returns `False`.
"""
for url_pattern in get_resolver(None).url_patterns:
if isinstance(url_pattern, LocaleRegexURLResolver):
return True
return False
def raises404(request):
resolver = get_resolver(None)
resolver.resolve('')