new_contents: import serial
  import time
  
  class blinkyBoard:
    def init(self, port, baud):
      self.serial = serial.Serial(port, baud)
      self.serial.open()
  
    def sendPixel(self,r,g,b):
      data = bytearray()
      data.append(0x80 | (r>>1))
      data.append(0x80 | (g>>1))
      data.append(0x80 | (b>>1))
      self.serial.write(data)
      self.serial.flush()
  
    def sendBreak(self):
      data = bytearray()
      for i in range(0,8):
        data.append(0x00)
      self.serial.write(data)
      self.serial.flush()
  
  b = blinkyBoard()
  b.init('/dev/cu.usbmodemfd121', 57600)
  
  b.sendBreak()
  while True:
    b.sendPixel(0,0,255)
    for i in range(0,30):
      b.sendPixel(255, 0, 0)
    b.sendPixel(0,0,255)
    b.sendBreak()
    time.sleep(.01)
  
    b.sendPixel(255,0,0)
    for i in range(0,30):
      b.sendPixel(0, 0, 255)
    b.sendPixel(255,0,0)
    b.sendBreak()
    time.sleep(.01)
  
subject: Add python data transmission example.