def from_name(self, name, default=NODEFAULT, section=None):
        "Get default value from argument name"
        if len(self._parser.sections()) > 0:
            section = self._section if section is None else section
            try:
                default = self._parser.get(section, name)
            except (configparser.NoSectionError, configparser.NoOptionError):
                pass
        if self._use_env:
            default = os.environ.get(self.metavar(name), default)
        return default
dataset/ETHPy150Open aliles/begins/begin/cmdline.py/DefaultsManager.from_name/original