evolution_strategy.py 文件源码

def save_to(self, nameprefix, switch=False):
        """saves logger data to a different set of files, for
        ``switch=True`` also the loggers name prefix is switched to
        the new value

        """
        if not nameprefix or not utils.is_str(nameprefix):
            raise ValueError('filename prefix must be a non-empty string')

        if nameprefix == self.default_prefix:
            raise ValueError('cannot save to default name "' + nameprefix + '...", chose another name')

        if nameprefix == self.name_prefix:
            return

        for name in self.file_names:
            open(nameprefix + name + '.dat', 'w').write(open(self.name_prefix + name + '.dat').read())

        if switch:
            self.name_prefix = nameprefix