ugettext and ugettext_lazy
ugettext is used to load a translation of a string right now. ugettext_lazy returns an object that can eventually be turned into a string. You need that if the ugettext_lazy call is evaluated before the proper locale has been set.
ugettext_lazy can be used where you use a Unicode object. Double-check your HTML output, it might look like this:
<django.utils.functional...>and the browser is ignoring it all as an unrecognized tag.
You don't need a lazy translation in this case, because you are immediately using the string. If you really want to continue with ugettext_lazy for some reason, try this:
return HttpResponse(ugettext_lazy("Hello").encode('utf-8'))See the docs for more information.