old_contents: from flask import Flask, jsonify, request
  #from dotenv import load_dotenv, find_dotenv
  from twilio import twiml
  
  
  from collections import deque
  from threading import Thread
  from time import sleep
  import os
  
  
  app = Flask(__name__)
  
  #load_dotenv(find_dotenv())
  
  directions = ['forward', 'backward']
  
  task_q = deque()
  """def send_rasp(task_q):
  	while True:
  		sleep(2)
  		if task_q.empty():
  			continue
  		message = task_q.get()
  		print(message)
  		handle_twilio_message(message)
  
  rasp_signal = Thread(target=send_rasp, args=(task_q, ))
  rasp_signal.setDaemon(True)
  rasp_signal.start()"""
  
  help_message = '''
  Twilio Plays Roomba!
  
  COMMANDS:
  
  turn [degree] : turns the roomba X number of positive degrees
  
  turn- [degree] : turns the roomba X number of negative degrees
  
  forward : moves the roomba forward
  
  backward : moves the roomba backward
  '''
  
  def validate(message):
  	try:
  		command, degree = message.split()
  		if command not in ['forward', 'backward', 'turn-', 'turn'] or float(degree) < 0:
  			return False
  	except Exception as e:
  		return False
  	return True
  
  @app.route('/', methods=['POST'])
  def roomba_command():
  	twilio_resp = twiml.Response()
  	body = request.form['Body']
  	message = 'Command valid and queued to roomba! Text howto to see all the commands'
  	if body.lower() == 'howto':
  		message = help_message
  	elif not validate(body):
  		message = 'Invalid command try again \n\n {}'.format(help_message)
  	else:
  		task_q.append(body)
  	twilio_resp.message(message)
  	return str(twilio_resp)
  
  @app.route('/next', methods=['GET'])
  def next():
  	if not task_q:
  		return jsonify({})
  	return jsonify({'command': task_q.popleft()})
  
  @app.route('/queue', methods=['GET'])
  def queue():
  	return jsonify(list(task_q))
  
  @app.route('/', methods=['GET'])
  def index():
  	return 'Hello!'
  
  if __name__ == "__main__":
      port = int(os.environ.get("PORT", 5000))
      app.debug = True
      app.run(host='0.0.0.0', port=port)
  
new_contents: from flask import Flask, jsonify, request
  #from dotenv import load_dotenv, find_dotenv
  from twilio import twiml
  
  
  from collections import deque
  from threading import Thread
  from time import sleep
  import os
  
  
  app = Flask(__name__)
  
  #load_dotenv(find_dotenv())
  
  directions = ['forward', 'backward']
  
  task_q = deque()
  """def send_rasp(task_q):
  	while True:
  		sleep(2)
  		if task_q.empty():
  			continue
  		message = task_q.get()
  		print(message)
  		handle_twilio_message(message)
  
  rasp_signal = Thread(target=send_rasp, args=(task_q, ))
  rasp_signal.setDaemon(True)
  rasp_signal.start()"""
  
  help_message = '''
  Twilio Plays Roomba!
  
  COMMANDS:
  
  turn [degree] : turns the roomba X number of positive degrees
  
  turn- [degree] : turns the roomba X number of negative degrees
  
  forward : moves the roomba forward
  
  backward : moves the roomba backward
  '''
  
  def validate(message):
  	try:
  		command, degree = message.split()
  		command = command.lower()
  		if command not in ['forward', 'backward', 'turn-', 'turn'] or float(degree) < 0:
  			return False
  	except Exception as e:
  		return False
  	return True
  
  @app.route('/', methods=['POST'])
  def roomba_command():
  	twilio_resp = twiml.Response()
  	body = request.form['Body']
  	message = 'Command valid and queued to roomba! Text howto to see all the commands'
  	if body.lower() == 'howto':
  		message = help_message
  	elif not validate(body):
  		message = 'Invalid command try again \n\n {}'.format(help_message)
  	else:
  		task_q.append(body)
  	twilio_resp.message(message)
  	return str(twilio_resp)
  
  @app.route('/next', methods=['GET'])
  def next():
  	if not task_q:
  		return jsonify({})
  	return jsonify({'command': task_q.popleft()})
  
  @app.route('/queue', methods=['GET'])
  def queue():
  	return jsonify(list(task_q))
  
  @app.route('/', methods=['GET'])
  def index():
  	return 'Hello!'
  
  if __name__ == "__main__":
      port = int(os.environ.get("PORT", 5000))
      app.debug = True
      app.run(host='0.0.0.0', port=port)
  
subject: Fix lower case error bug