1 f = open("text_file.txt","rb" ) 2 3 for ln in f: 4 offs = -10 5 while True: 6 print(offs) 7 f.seek(offs,2) 8 data = f.readlines() 9 if len(data) > 1: 10 print(data[-1].decode()) 11 break 12 else: 13 offs *= 2 14 15 f.close()