Loop-help for a newbie?

[buran]

the way you did it you don't need the first 2 lines. However better do

for row in (1, 4):
    sheet.merge_cells(start_row=row, start_column=1, end_row=row, end_column=9)

columns = [(col, col+1) for col in range(2, 9, 2)]
for row in [2, 3, 5, 8, 11, 12, 13, 17, 18, 23, 25, 29, 30, 31, 32, 40, 101]:
    for col1, col2 in columns:
        sheet.merge_cells(start_row=row, start_column=col1, end_row=row, end_column=col2)

for row in (1, 4):
    sheet.merge_cells(start_row=row, start_column=2, end_row=row, end_column=3)
    sheet.merge_cells(start_row=row, start_column=6, end_row=row, end_column=9)