old_contents: import argparse
  
  from flask import Flask
  from src.pin import OutputPin
  
  parser = argparse.ArgumentParser(description='Controls an AC System')
  parser.add_argument("-p", "--port", type=int, help="the port to run server on", default=5003)
  parser.add_argument("-a", "--AC_pin", type=int, help="the pin to turn on to activate the AC system", default=4)
  parser.add_argument("-h", "--heater_pin", type=int, help="the pin to turn on to activate the heater", default=5)
  parser.add_argument("-f", "--fan_pin", type=int, help="the pin to turn on to activate the fan", default=6)
  
  
  args = parser.parse_args()
  
  
  AC_pin = OutputPin(args.AC_pin)
  heater_pin = OutputPin(args.heater_pin)
  fan_pin = OutputPin(args.fan_pin)
  
  
  app = Flask(__name__)
  
  
  @app.route("/ac/<on_off>", methods=["POST", "GET"])
  def ac(on_off):
      on = on_off == 'on'
      AC_pin.set(on)
      return on_off
  
  
  @app.route("/heater/<on_off>", methods=["POST", "GET"])
  def heater(on_off):
      on = on_off == 'on'
      heater_pin.set(on)
      return on_off
  
  
  @app.route("/fan/<on_off>", methods=["POST", "GET"])
  def fan(on_off):
      on = on_off == 'on'
      fan_pin.set(on)
      return on_off
  
  if __name__ == "__main__":
      app.run(debug=True, port=args.port)
  
new_contents: import argparse
  
  from flask import Flask
  from src.pin import OutputPin
  
  parser = argparse.ArgumentParser(description='Controls an AC System')
  parser.add_argument("-p", "--port", type=int, help="the port to run server on", default=5003)
  parser.add_argument("-a", "--AC_pin", type=int, help="the pin to turn on to activate the AC system", default=4)
  parser.add_argument("--heater_pin", type=int, help="the pin to turn on to activate the heater", default=5)
  parser.add_argument("-f", "--fan_pin", type=int, help="the pin to turn on to activate the fan", default=6)
  
  
  args = parser.parse_args()
  
  
  AC_pin = OutputPin(args.AC_pin)
  heater_pin = OutputPin(args.heater_pin)
  fan_pin = OutputPin(args.fan_pin)
  
  
  app = Flask(__name__)
  
  
  @app.route("/ac/<on_off>", methods=["POST", "GET"])
  def ac(on_off):
      on = on_off == 'on'
      AC_pin.set(on)
      return on_off
  
  
  @app.route("/heater/<on_off>", methods=["POST", "GET"])
  def heater(on_off):
      on = on_off == 'on'
      heater_pin.set(on)
      return on_off
  
  
  @app.route("/fan/<on_off>", methods=["POST", "GET"])
  def fan(on_off):
      on = on_off == 'on'
      fan_pin.set(on)
      return on_off
  
  if __name__ == "__main__":
      app.run(debug=True, port=args.port)
  
subject: Remove Duplicate -h Flag