config_reader.py 文件源码

def _check_version(self, config):
        """
        Raises a VersionIncompatibleException when the current sceptre version
        does not comply with the configured version requirement.

        :raises: sceptre.exceptions.VersionIncompatibleException
        """
        sceptre_version = __version__
        if 'require_version' in config:
            require_version = config['require_version']
            if Version(sceptre_version) not in SpecifierSet(require_version):
                raise VersionIncompatibleError(
                    "Current sceptre version ({0}) does not meet version "
                    "requirements: {1}".format(
                        sceptre_version, require_version
                    )
                )