message: Reformat decoder.py.
  Run `black` over it.
  GPC: reformat-decoder
diff: -import serial
  +import serial # pip install pySerial
  import struct
  import network_protocol_pb2
  import time
  -p = serial.Serial('/dev/ttyACM0', 115200)
  +p = serial.Serial("/dev/ttyACM0", 115200)
  while True:
  - last_packet = time.time();
  - s = b''
  + last_packet = time.time()
  + s = b""
  while True:
  if p.in_waiting > 0:
  b = p.read()
  s += b
  - last_packet = time.time();
  - if(time.time() - last_packet) > 0.001: #Arbitrary longish time picked up by experiment
  + last_packet = time.time()
  + if (
  + time.time() - last_packet
  + ) > 0.001: # Arbitrary longish time picked up by experiment
  break
  stat = network_protocol_pb2.ControllerStatus()
  try:
  stat.ParseFromString(s)
  - print('------')
  + print("------")
  print(stat)
  except:
  pass
  