Method start

source/python.js:13588–13590

()

                return [this._source_view.filename(), this._source_view.lineno_to_source_lineno(lineno), col_offset];
            }
            start() {
                return this._start;
            }
            toString() {
                const loc = this.file_line_col();
                return loc ? `${loc[0]}:${loc[1]}:${loc[2]}` : '';