How to use the hdfs.function.HDFS function in hdfs

def upload(request, path):
    path = os.path.realpath("%s/%s" % (os.path.sep, path))
    hdfs = HDFS()
    return hdfs.upload(path, request)

def list_status(request, path):
    path = os.path.realpath("/%s/%s" % (os.path.sep, path))
    hdfs = HDFS()
    return hdfs.list_status(path, request)

def make_dir(request, path):
    hdfs_logger.info("make_dir")
    path = os.path.realpath("/%s/%s" % (os.path.sep, path))
    hdfs = HDFS()
    return hdfs.make_dir(path, request)

def showShare(request,path):
    result = {}
    try:
        path = os.path.realpath("%s/%s" %(os.path.sep,path))
        hdfs = HDFS()
        result = hdfs.list_status_share(request,path)
    except Exception,e:
        hdfs_logger.error(traceback.format_exc())
        result["code"] = StatusCode["SUCCESS"]
        result["data"] = TableNoData
    finally:
        return result

def list_status_tree(request,path):
    path = os.path.realpath("/%s/%s" % (os.path.sep, path))
    hdfs = HDFS()
    baseData = hdfs.list_status(path, request)
    result = {}
    try:
        if baseData:
            data=[{
                     "name":k["name"],
                     "isParent":"true",
                   } for k in baseData["data"]["totalList"]
                     if k["is_dir"]==1 ]
        else:
            data=[]
        hdfs_logger.info("liststatustree:%s" %data)
        result["code"] =  StatusCode["SUCCESS"]
        result["data"] = data
    except Exception,e:
        hdfs_logger.error("%s" %e)

def download(request, path):
    path = os.path.realpath("%s/%s" % (os.path.sep, path))
    hdfs = HDFS()
    return hdfs.download(path, request)