human
I wrote the below code

    def _decorator(view):
        def wrapped_view(request, *args, **kwargs):
            try:
                uk = UserKey.objects.get(user=request.user)
            except UserKey.DoesNotExist:
                messages.warning(request, u"This    operation    requires    an    active    user    key,    but    you    don't    have    one.")
                return redirect(u'user:userkey')
            if (not uk.is_active()):
                messages.warning(request, u'This    operation    is    not    available.    Your    user    key    has    not    been    activated.')
                return redirect(u'user:userkey')
            return view(request, *args, **kwargs)
        return wrapped_view
    return _decorator

What's a good function header?
 ... Here's a good function header?
assistant
#Here's a good function header.

def userkey_required():