code: def get_config_load_path(conf_path=None):
      
  
      if conf_path is None:
          # test ./andes.conf
          if os.path.isfile('andes.conf'):
              conf_path = 'andes.conf'
          # test ~/andes.conf
          home_dir = os.path.expanduser('~')
          if os.path.isfile(os.path.join(home_dir, '.andes', 'andes.conf')):
              conf_path = os.path.join(home_dir, '.andes', 'andes.conf')
  
      if conf_path is not None:
          logger.debug('Found config file at {}.'.format(conf_path))
  
      return conf_path
docs: Return config file load path
  
      Priority:
          1. conf_path
          2. current directory
          3. home directory
  
      Parameters
      ----------
      conf_path
  
      Returns
      -------