old_contents: import requests
  import time
  from roomba.create2 import Create2
  
  roomba = Create2()
  roomba.start()
  roomba.safe()
  
  URL = 'https://twilio-plays-roomba.herokuapp.com/next';
  
  def run_command(message):
  	try:
  		command, degree = message.split()
  		command = command.lower()
          degree = float(degree)
          
  		if command == 'forward':
  			roomba.straight(degree)
  		elif command == 'backward':
  			roomba.clockwise(180)
  			roomba.straight(degree)
  		elif command == 'turn':
  			roomba.clockwise(degree)
  		elif command == 'turn-':
  			roomba.counterclockwise(degree)
  	except Exception as e:
          print(e)
  		print("Error when sending message: {}".format(message))
  	finally:
  		time.sleep(0.5)
  		roomba.drive(0, 0)
  
  def validate(message):
  	try:
  		command, degree = message.split()
  		if command not in ['forward', 'backward', 'turn-', 'turn'] and float(degree) < 0:
  			return False
  	except Exception as e:
  		return False
  	return True
  
  while True:
      res = requests.get(URL).json()
  
      if 'command' in res:
          command = res['command']
          if validate(command):
              print(command)
              run_command(command)
          else:
              printf("Invalid command.")
      else:
          print('No commands in the queue.')
  
      time.sleep(5)
  
new_contents: import requests
  import time
  from roomba.create2 import Create2
  
  roomba = Create2()
  roomba.start()
  roomba.safe()
  
  URL = 'https://twilio-plays-roomba.herokuapp.com/next';
  
  def run_command(message):
  	try:
  		command, degree = message.split()
  		command = command.lower()
  		degree = float(degree)
          
  		if command == 'forward':
  			roomba.straight(degree)
  		elif command == 'backward':
  			roomba.clockwise(180)
  			roomba.straight(degree)
  		elif command == 'turn':
  			roomba.clockwise(degree)
  		elif command == 'turn-':
  			roomba.counterclockwise(degree)
  	except Exception as e:
          print(e)
  		print("Error when sending message: {}".format(message))
  	finally:
  		time.sleep(0.5)
  		roomba.drive(0, 0)
  
  def validate(message):
  	try:
  		command, degree = message.split()
  		if command not in ['forward', 'backward', 'turn-', 'turn'] and float(degree) < 0:
  			return False
  	except Exception as e:
  		return False
  	return True
  
  while True:
      res = requests.get(URL).json()
  
      if 'command' in res:
          command = res['command']
          if validate(command):
              print(command)
              run_command(command)
          else:
              print("Invalid command.")
      else:
          print('No commands in the queue.')
  
      time.sleep(5)
  
subject: fix print