code: def get_option(env_name, section, opt_name, default=None):
      
      val = os.environ.get(env_name)
      if val is None:
          try:
              val = _pyftpsyncrc_parser.get(section, opt_name)
          except (compat.configparser.NoSectionError, compat.configparser.NoOptionError):
              pass
      if val is None:
          val = default
      return val
docs: Return a configuration setting from environment var or .pyftpsyncrc