flask view sample

@blueprint.route("/<path_hash>/<filename>")
def static_file(path_hash, filename ):
    article = db.session.query(xx.xxx.xx)
    path_hash_config = URLSafeSerializer('this is secret', salt='pocoo fans')
    # article[1][7] -> returning email
    path_hash = path_hash_config.dumps(article[1][7])
    path_unhash = path_hash_config.loads(path_hash_config.dumps(article[1][7]))
    # article[1][3] -> get file relative path ex: guido@gmail.com/images/writings/sssss.jpg
    #filename variable  to get the filename so "guido@gmail.com/images/writings/a.jpg" returning a.jpg
    filename = article[1][3].split('/')[3]
    file_location = path_unhash + '/' + filename

    # return send_from_directory(static_folder, path_unhash)
    # return send_from_directory(static_folder, request.path[1:])
    return send_from_directory(static_folder, file_location)