text: #testing lcd fun in class - horizontal scroll
  import sys,time
  sys.path.append('/home/pi/Desktop/OCN418/F17/week04')
  from lcd20x4 import LCD
  
  
  lcd = LCD(bus=1,address=0x3f)
  
  line = 'should we gather for whisky and cigar tonight?'
  
  #lcd.write_lines(['cast','into','the bowels','of the earth'])
  
  i = 0
  
  while True:
      lcd.write_lines([line[i:i+20],'','',''])
      time.sleep(1)
      i = i + 1
      i = i % len(line)
  