old_contents: #!/usr/bin/env python3
  import argparse
  import os
  import sys
  
  from app.library.daemon import Daemon
  
  parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
  parser.add_argument("--debug", help="enable debug mode", action="store_true", default=False)
  
  daemon_group = parser.add_argument_group("daemon")
  daemon_group.add_argument("--daemon", help="run in daemon mode", action="store_true", default=False)
  daemon_group.add_argument("--stop", help="stop if running in daemon mode", action="store_true", default=False)
  daemon_group.add_argument("--restart", help="restart daemon", action="store_true", default=False)
  
  web_frontend_group = parser.add_argument_group("net")
  web_frontend_group.add_argument("--port", default=7000, help="port at which the web frontend is listening", type=int)
  web_frontend_group.add_argument("--host", default="127.0.0.1",
                                  help="host IP under which the web front end is listening")
  
  args = parser.parse_args()
  from app import app, socketio
  
  
  class Application(Daemon):
      def start(self):
          if sys.platform == "win32":
              print("Sorry, but daemon mode is not supported under Windows!")
              sys.exit(1)
  
          super().start()
          return
  
      def run(self):
          socketio.run(app, host=args.host, port=args.port, debug=args.debug)
  
  
  application = Application(os.path.join(app.config["DATA_PATH"], "pyencode.pid"))
  
  if args.restart:
      application.restart()
  elif args.stop:
      application.stop()
  else:
      if args.daemon:
          application.start()
      else:
          # check if pyEncode is already running
          try:
              application.run()
          except OSError:
              sys.stderr.write("pyEncode is already running (maybe as daemon?)\n")
  
new_contents: #!/usr/bin/env python3
  import argparse
  import os
  import sys
  
  from app.library.daemon import Daemon
  
  parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
  parser.add_argument("--debug", help="enable debug mode (does not work with daemon mode)", action="store_true", default=False)
  
  daemon_group = parser.add_argument_group("daemon")
  daemon_group.add_argument("--daemon", help="run in daemon mode", action="store_true", default=False)
  daemon_group.add_argument("--stop", help="stop if running in daemon mode", action="store_true", default=False)
  daemon_group.add_argument("--restart", help="restart daemon", action="store_true", default=False)
  
  web_frontend_group = parser.add_argument_group("net")
  web_frontend_group.add_argument("--port", default=7000, help="port at which the web frontend is listening", type=int)
  web_frontend_group.add_argument("--host", default="127.0.0.1",
                                  help="host IP under which the web front end is listening")
  
  args = parser.parse_args()
  from app import app, socketio
  
  
  class Application(Daemon):
      def start(self):
          if sys.platform == "win32":
              print("Sorry, but daemon mode is not supported under Windows!")
              sys.exit(1)
  
          super().start()
          return
  
      def run(self):
          socketio.run(app, host=args.host, port=args.port, debug=args.debug)
  
  
  application = Application(os.path.join(app.config["DATA_PATH"], "pyencode.pid"))
  
  if args.restart:
      application.restart()
  elif args.stop:
      application.stop()
  else:
      if args.daemon:
          application.start()
      else:
          # check if pyEncode is already running
          try:
              application.run()
          except OSError:
              sys.stderr.write("pyEncode is already running (maybe as daemon?)\n")
  
subject: add notice about debug mode not working with daemon mode