DJANGO - ADMIN override list_filter depending on user

gistfile1.txt

class MyAdmin(admin.ModelAdmin):
    list_filter = ['market']
    # Duplicate list_filter to assign on a pre request basis
    _list_filter = list_filter


    # Change list filter on the view depending on user
    def changelist_view(self, request, extra_context=None):    
        if not request.user.is_superuser:
            self.list_filter = None
        else:
            self.list_filter = self._list_filter
        return super(MyAdmin, self).changelist_view(request, extra_context)