问如何在python中创建一个可以保存在内存中的CSV文件？

EN

def data_feed_file(request):
    open_publications = self.get_publications(user_context)

    with open('facebook_feed.csv', 'wb') as csvfile:
        filewriter = csv.writer(csvfile, delimiter=',', quotechar='|', quoting=csv.QUOTE_MINIMAL)
        filewriter.writerow(['id', 'title','description'])
        for op_pub in open_publications:
            filewriter.writerow([op_pub.id, op_pub.name, str(op_pub.description)])

    with open('facebook_feed.csv', 'rb') as myfile:
        response = HttpResponse(myfile, content_type='text/csv')
        response['Content-Disposition'] = 'attachment; filename=facebook_feed.csv'

    return response