Example python code for our SR export

export_order.py

            rows = export_order_csv(request.POST)

            # nested method used only in this method to return a yield encoded data first the yield csv code later
            def response_generator():
                yield u'\ufeff'.encode('utf8')
                for row in rows:
                    yield writer.writerow(row)

            pseudo_buffer = Echo()
            writer = csv.writer(pseudo_buffer)
            response = StreamingHttpResponse(response_generator(), content_type="application/force-download; charset=utf-8")
            filename = unicode(_("Accepted_Order_Data_")) + unicode(timezone.now().date().strftime('%y%m%d'))
            response['Content-Disposition'] = 'attachement; filename="{0}.csv"'.format(filename)
            return response