Python Question

Suppose variable row_Ist points to a list of lists of strings. E.g. row_IstO-O- We want to save row_ Ist to a CSV file using the csv module so that the file content becomes: 0-0,0-1 1-0,1-1 Assuming the variable wr is initialized already to a valid csv writer object, which are the correct ways to save row Ist? wr.write_rows (row_1st) wr.writerow(row_1st) ??.writerows(row 1st) for row in row 1st: wr.writerows (row) for row in row 1st: wr.writerow(row)