def _get_file_stream(self, total_content_length, content_type, filename=None,
                        content_length=None):
        return default_stream_factory(total_content_length, content_type,
                                      filename, content_length)
Called to get a stream for the file upload.
dataset/ETHPy150Open Eforcers/gae-flask-todo/lib/werkzeug/wrappers.py/BaseRequest._get_file_stream