def _configure(self, config_object=None):<EOL>
if config_object:<EOL><INDENT>self.config.from_mapping(config_object)<EOL><DEDENT>else:<EOL><INDENT>self.config.from_object(self._default_settings_module)<EOL><DEDENT>zsl_settings = os.environ.get(SETTINGS_ENV_VAR_NAME)<EOL>if zsl_settings is not None:<EOL><INDENT>self.config.from_envvar(SETTINGS_ENV_VAR_NAME)<EOL><DEDENT>
Read the configuration from config files.
        Loads the default settings and the profile settings if available.
        Check :func:`.set_profile`.

        :param config_object:
            This parameter is the configuration decscription may be a dict or
            string describing the module from which the configuration is used.
            Default is settings.default_settings.