How to use the letsencrypt.errors.NotSupportedError function in letsencrypt

# Verify Apache is installed
        if not le_util.exe_exists(constants.os_constant("restart_cmd")[0]):
            raise errors.NoInstallationError

        # Make sure configuration is valid
        self.config_test()

        # Set Version
        if self.version is None:
            self.version = self.get_version()
        if self.version < (2, 2):
            raise errors.NotSupportedError(
                "Apache Version %s not supported.", str(self.version))

        if not self._check_aug_version():
            raise errors.NotSupportedError(
                "Apache plugin support requires libaugeas0 and augeas-lenses "
                "version 1.2.0 or higher, please make sure you have you have "
                "those installed.")

        self.parser = parser.ApacheParser(
            self.aug, self.conf("server-root"), self.conf("vhost-root"),
            self.version)
        # Check for errors in parsing files with Augeas
        self.check_parsing_errors("httpd.aug")

        # Get all of the available vhosts
        self.vhosts = self.get_virtual_hosts()

        install_ssl_options_conf(self.mod_ssl_conf)

:raises .errors.NotSupportedError: If Apache version is not supported
        :raises .errors.PluginError: If there is any other error

        """
        # Verify Apache is installed
        if not le_util.exe_exists(constants.os_constant("restart_cmd")[0]):
            raise errors.NoInstallationError

        # Make sure configuration is valid
        self.config_test()

        # Set Version
        if self.version is None:
            self.version = self.get_version()
        if self.version < (2, 2):
            raise errors.NotSupportedError(
                "Apache Version %s not supported.", str(self.version))

        if not self._check_aug_version():
            raise errors.NotSupportedError(
                "Apache plugin support requires libaugeas0 and augeas-lenses "
                "version 1.2.0 or higher, please make sure you have you have "
                "those installed.")

        self.parser = parser.ApacheParser(
            self.aug, self.conf("server-root"), self.conf("vhost-root"),
            self.version)
        # Check for errors in parsing files with Augeas
        self.check_parsing_errors("httpd.aug")

        # Get all of the available vhosts
        self.vhosts = self.get_virtual_hosts()

Both enables and reloads Apache so module is active.

        :param str mod_name: Name of the module to enable. (e.g. 'ssl')
        :param bool temp: Whether or not this is a temporary action.

        :raises .errors.NotSupportedError: If the filesystem layout is not
            supported.
        :raises .errors.MisconfigurationError: If a2enmod or a2dismod cannot be
            run.

        """
        # Support Debian specific setup
        avail_path = os.path.join(self.parser.root, "mods-available")
        enabled_path = os.path.join(self.parser.root, "mods-enabled")
        if not os.path.isdir(avail_path) or not os.path.isdir(enabled_path):
            raise errors.NotSupportedError(
                "Unsupported directory layout. You may try to enable mod %s "
                "and try again." % mod_name)

        deps = _get_mod_deps(mod_name)

        # Enable all dependencies
        for dep in deps:
            if (dep + "_module") not in self.parser.modules:
                self._enable_mod_debian(dep, temp)
                self._add_parser_mod(dep)

                note = "Enabled dependency of %s module - %s" % (mod_name, dep)
                if not temp:
                    self.save_notes += note + os.linesep
                logger.debug(note)

supported.

        """
        if self.is_site_enabled(vhost.filep):
            return

        if "/sites-available/" in vhost.filep:
            enabled_path = ("%s/sites-enabled/%s" %
                            (self.parser.root, os.path.basename(vhost.filep)))
            self.reverter.register_file_creation(False, enabled_path)
            os.symlink(vhost.filep, enabled_path)
            vhost.enabled = True
            logger.info("Enabling available site: %s", vhost.filep)
            self.save_notes += "Enabled site %s\n" % vhost.filep
        else:
            raise errors.NotSupportedError(
                "Unsupported filesystem layout. "
                "sites-available/enabled expected.")