WordPress Exclude Pages from Admin Area by Slug

function exclude_pages_from_admin_by_slug ($query) {
    global $pagenow,$post_type;

    //set the array of to be excluded slugs
    $excludeds = array(
        'login',
        'logout',
        'lostpassword',
        'register',
        'resetpass'
    );

    //get array of IDs from array of slugs
    foreach ( $excludeds as $excluded ) {
        $excluded_IDs[] = get_page_by_path( $excluded )->ID;
    }

    if (!is_admin() && $pagenow=='edit.php' && $post_type =='page') {
        //exclude those IDs from query
        $query->query_vars['post__not_in'] = $excluded_IDs;
    }
}
add_filter( 'parse_query', 'exclude_pages_from_admin_by_slug' );