old_contents: import click
  import os
  from .app import app
  from .server import StandaloneServer
  
  
  @click.command()
  @click.option(
      '--port',
      default=8000,
      help='Port to listen on, default is 8000'
  )
  @click.option(
      '--upload-dir',
      default=os.getcwd(),
      help='Directory where uploads are stored, if not specified the current working directory will be used'
  )
  @click.option(
      '--baseurl',
      default=None,
      help='Base URL, e.g. http://www.example.com/'
  )
  def main(port, upload_dir, baseurl):
      if baseurl is None:
          baseurl = "http://www.example.com/"
          click.echo(
              click.style('You did not specify a Base URL, using default: http://www.example.com/', fg='yellow')
          )
  
      app.config['UPLOAD_DIR'] = upload_dir
      app.config['BASE_URL'] = baseurl
  
      server_options = {
          'bind': '{ip}:{port}'.format(
              ip='0.0.0.0',
              port=port
          ),
          'workers': 4,
      }
      StandaloneServer(app, server_options).run()
  
  
  if __name__ == '__main__':
      main()
new_contents: import click
  import os
  from .app import app
  from .server import StandaloneServer
  
  
  @click.command()
  @click.option(
      '--port',
      default=8000,
      help='Port to listen on, default is 8000'
  )
  @click.option(
      '--upload-dir',
      default=os.getcwd(),
      help='Directory where uploads are stored, if not specified the current working directory will be used'
  )
  @click.option(
      '--baseurl',
      default=None,
      help='Base URL, e.g. http://example.com/'
  )
  def main(port, upload_dir, baseurl):
      if baseurl is None:
          baseurl = 'http://{host}:{port}/'.format(host='localhost', port=port)
          click.echo(
              click.style('You did not specify a Base URL, using default: ' + baseurl, fg='yellow')
          )
  
      app.config['UPLOAD_DIR'] = upload_dir
      app.config['BASE_URL'] = baseurl
  
      server_options = {
          'bind': '{ip}:{port}'.format(
              ip='0.0.0.0',
              port=port
          ),
          'workers': 4,
      }
      StandaloneServer(app, server_options).run()
  
  
  if __name__ == '__main__':
      main()
subject: use localhost as default base url