Outputting Shift-JIS CSV with Django

Python 3, Django 1.9

It might be easier and less troublesome to write in Unicode to StringIO first and then convert to CP932 all at once.

class CSVView(View):
    def get(self, request, **kwargs):

        response = HttpResponse(content_type='text/csv; charset=Shift-JIS')
        response['Content-Disposition'] = \
            'attachment; filename=items.csv'
        sio = io.StringIO()
        writer = csv.writer(sio)
        writer.writerow(self.header)
        for row in self.get_rows():
            writer.writerow(row)
        response.write(sio.getvalue().encode('cp932'))
        return response