请向我展示如何创建 -PyQt4.QtCore.QIODevice使用顺序访问的示例。这必须是这样的 QIODevice：
printing - isinstance(data, QIODevice) : True
printing - data.isSequential(): True
printing - data.isTextModeEnabled(): False
printing - data.dumpObjectTree(): None
printing - data.__weakref__: None
printing - data.__class__: <class 'PyQt4.QtCore.QIODevice'>
printing - data.__dict__: {}
printing - data.__doc__': QIODevice()
QIODevice(QObject)
printing - data.__format__': <built-in method __format__ of QIODevice object at 0x02C2EDA0>
printing - data.'__reduce__': <built-in method __reduce__ of QIODevice object at 0x02C2EDA0>
printing - data.'__reduce_ex__': <built-in method __reduce_ex__ of QIODevice object at 0x02C2EDA0>
打印目录（数据）
打印 - ['Append'，'NotOpen'，'OpenMode'，'OpenModeFlag'，'ReadOnly'，'ReadWrite'，'Text'，'Truncate'，'Unbuffered'，'WriteOnly'，'类'、' delattr '、' dict '、' doc '、' format '、' getattr '、' getattribute '、' hash '、' init '、' module '、' new '、' reduce '、' reduce_ex '、 '代表'，'setattr ', ' sizeof ', ' str ', ' subclasshook ', ' weakref'，'aboutToClose'，'atEnd'，'blockSignals'，'bytesAvailable'，'bytesToWrite'，'bytesWritten'，'canReadLine'，'childEvent'，'children'，'close'，'connect'，'connectNotify'， 'customEvent'、'deleteLater'、'destroyed'、'disconnect'、'disconnectNotify'、'dumpObjectInfo'、'dumpObjectTree'、'dynamicPropertyNames'、'emit'、'errorString'、'event'、'eventFilter'、'findChild '，'findChildren'，'getChar'，'inherits'，'installEventFilter'，'isOpen'，'isReadable'，'isSequential'，'isTextModeEnabled'，'isWidgetType'，'isWritable'，'killTimer'，'metaObject'， 'moveToThread'，'objectName'，'open'，'openMode'，'parent'，'peek'，'pos'，'property'，'putChar'，'pyqtConfigure'，'read'，'readAll'，'readChannelFinished' ，'readData'，'readLine'，'readLineData'，'readyRead'，'receivers'，'removeEventFilter'，'reset'，'seek'，'sender'，'senderSignalIndex'，'setErrorString'，'setObjectName'，' setOpenMode'、'setParent'、'setProperty'、'setTextModeEnabled'、'signalsBlocked'、'size'、'startTimer'、'staticMetaObject'、'thread'、'timerEvent'、'tr'、'trUtf8'、'ungetChar' , 'waitForBytesWritten', 'waitForReadyRead'，'write'，'writeData']
Print all properties:
obj.Append = 4
obj.NotOpen = 0
obj.OpenMode = <class 'PyQt4.QtCore.OpenMode'>
obj.OpenModeFlag = <class 'PyQt4.QtCore.OpenModeFlag'>
obj.ReadOnly = 1
obj.ReadWrite = 3
obj.Text = 16
obj.Truncate = 8
obj.Unbuffered = 32
obj.WriteOnly = 2
obj.__class__ = <class 'PyQt4.QtCore.QIODevice'>
obj.__delattr__ = <method-wrapper '__delattr__' of QIODevice object at 0x02C2EDA0>
obj.__dict__ = {}
obj.__doc__ = QIODevice()
QIODevice(QObject)
obj.__format__ = <built-in method __format__ of QIODevice object at 0x02C2EDA0>
obj.__getattr__ = <built-in method __getattr__ of QIODevice object at 0x02C2EDA0>
obj.__getattribute__ = <method-wrapper '__getattribute__' of QIODevice object at 0x02C2EDA0>
obj.__hash__ = <method-wrapper '__hash__' of QIODevice object at 0x02C2EDA0>
obj.__init__ = <method-wrapper '__init__' of QIODevice object at 0x02C2EDA0>
obj.__module__ = PyQt4.QtCore
obj.__new__ = <built-in method __new__ of sip.wrappertype object at 0x5F4232B0>
obj.__reduce__ = <built-in method __reduce__ of QIODevice object at 0x02C2EDA0>
obj.__reduce_ex__ = <built-in method __reduce_ex__ of QIODevice object at 0x02C2EDA0>
obj.__repr__ = <method-wrapper '__repr__' of QIODevice object at 0x02C2EDA0>
obj.__setattr__ = <method-wrapper '__setattr__' of QIODevice object at 0x02C2EDA0>
obj.__sizeof__ = <built-in method __sizeof__ of QIODevice object at 0x02C2EDA0>
obj.__str__ = <method-wrapper '__str__' of QIODevice object at 0x02C2EDA0>
obj.__subclasshook__ = <built-in method __subclasshook__ of PyQt4.QtCore.pyqtWrapperType object at 0x02386968>
obj.__weakref__ = None
obj.aboutToClose = <bound signal aboutToClose of QIODevice object at 0x02C2EDA0>
obj.atEnd = <built-in method atEnd of QIODevice object at 0x02C2EDA0>
obj.blockSignals = <built-in method blockSignals of QIODevice object at 0x02C2EDA0>
obj.bytesAvailable = <built-in method bytesAvailable of QIODevice object at 0x02C2EDA0>
obj.bytesToWrite = <built-in method bytesToWrite of QIODevice object at 0x02C2EDA0>
obj.bytesWritten = <bound signal bytesWritten of QIODevice object at 0x02C2EDA0>
obj.canReadLine = <built-in method canReadLine of QIODevice object at 0x02C2EDA0>
obj.childEvent = <built-in method childEvent of QIODevice object at 0x02C2EDA0>
obj.children = <built-in method children of QIODevice object at 0x02C2EDA0>
obj.close = <built-in method close of QIODevice object at 0x02C2EDA0>
obj.connect = <built-in method connect of QIODevice object at 0x02C2EDA0>
obj.connectNotify = <built-in method connectNotify of QIODevice object at 0x02C2EDA0>
obj.customEvent = <built-in method customEvent of QIODevice object at 0x02C2EDA0>
obj.deleteLater = <built-in method deleteLater of QIODevice object at 0x02C2EDA0>
obj.destroyed = <bound signal destroyed of QIODevice object at 0x02C2EDA0>
obj.disconnect = <built-in method disconnect of QIODevice object at 0x02C2EDA0>
obj.disconnectNotify = <built-in method disconnectNotify of QIODevice object at 0x02C2EDA0>
obj.dumpObjectInfo = <built-in method dumpObjectInfo of QIODevice object at 0x02C2EDA0>
obj.dumpObjectTree = <built-in method dumpObjectTree of QIODevice object at 0x02C2EDA0>
obj.dynamicPropertyNames = <built-in method dynamicPropertyNames of QIODevice object at 0x02C2EDA0>
obj.emit = <built-in method emit of QIODevice object at 0x02C2EDA0>
obj.errorString = <built-in method errorString of QIODevice object at 0x02C2EDA0>
obj.event = <built-in method event of QIODevice object at 0x02C2EDA0>
obj.eventFilter = <built-in method eventFilter of QIODevice object at 0x02C2EDA0>
obj.findChild = <built-in method findChild of QIODevice object at 0x02C2EDA0>
obj.findChildren = <built-in method findChildren of QIODevice object at 0x02C2EDA0>
obj.getChar = <built-in method getChar of QIODevice object at 0x02C2EDA0>
obj.inherits = <built-in method inherits of QIODevice object at 0x02C2EDA0>
obj.installEventFilter = <built-in method installEventFilter of QIODevice object at 0x02C2EDA0>
obj.isOpen = <built-in method isOpen of QIODevice object at 0x02C2EDA0>
obj.isReadable = <built-in method isReadable of QIODevice object at 0x02C2EDA0>
obj.isSequential = <built-in method isSequential of QIODevice object at 0x02C2EDA0>
obj.isTextModeEnabled = <built-in method isTextModeEnabled of QIODevice object at 0x02C2EDA0>
obj.isWidgetType = <built-in method isWidgetType of QIODevice object at 0x02C2EDA0>
obj.isWritable = <built-in method isWritable of QIODevice object at 0x02C2EDA0>
obj.killTimer = <built-in method killTimer of QIODevice object at 0x02C2EDA0>
obj.metaObject = <built-in method metaObject of QIODevice object at 0x02C2EDA0>
obj.moveToThread = <built-in method moveToThread of QIODevice object at 0x02C2EDA0>
obj.objectName = <built-in method objectName of QIODevice object at 0x02C2EDA0>
obj.open = <built-in method open of QIODevice object at 0x02C2EDA0>
obj.openMode = <built-in method openMode of QIODevice object at 0x02C2EDA0>
obj.parent = <built-in method parent of QIODevice object at 0x02C2EDA0>
obj.peek = <built-in method peek of QIODevice object at 0x02C2EDA0>
obj.pos = <built-in method pos of QIODevice object at 0x02C2EDA0>
obj.property = <built-in method property of QIODevice object at 0x02C2EDA0>
obj.putChar = <built-in method putChar of QIODevice object at 0x02C2EDA0>
obj.pyqtConfigure = <built-in method pyqtConfigure of QIODevice object at 0x02C2EDA0>
obj.read = <built-in method read of QIODevice object at 0x02C2EDA0>
obj.readAll = <built-in method readAll of QIODevice object at 0x02C2EDA0>
obj.readChannelFinished = <bound signal readChannelFinished of QIODevice object at 0x02C2EDA0>
obj.readData = <built-in method readData of QIODevice object at 0x02C2EDA0>
obj.readLine = <built-in method readLine of QIODevice object at 0x02C2EDA0>
obj.readLineData = <built-in method readLineData of QIODevice object at 0x02C2EDA0>
obj.readyRead = <bound signal readyRead of QIODevice object at 0x02C2EDA0>
obj.receivers = <built-in method receivers of QIODevice object at 0x02C2EDA0>
obj.removeEventFilter = <built-in method removeEventFilter of QIODevice object at 0x02C2EDA0>
obj.reset = <built-in method reset of QIODevice object at 0x02C2EDA0>
obj.seek = <built-in method seek of QIODevice object at 0x02C2EDA0>
obj.sender = <built-in method sender of QIODevice object at 0x02C2EDA0>
obj.senderSignalIndex = <built-in method senderSignalIndex of QIODevice object at 0x02C2EDA0>
obj.setErrorString = <built-in method setErrorString of QIODevice object at 0x02C2EDA0>
obj.setObjectName = <built-in method setObjectName of QIODevice object at 0x02C2EDA0>
obj.setOpenMode = <built-in method setOpenMode of QIODevice object at 0x02C2EDA0>
obj.setParent = <built-in method setParent of QIODevice object at 0x02C2EDA0>
obj.setProperty = <built-in method setProperty of QIODevice object at 0x02C2EDA0>
obj.setTextModeEnabled = <built-in method setTextModeEnabled of QIODevice object at 0x02C2EDA0>
obj.signalsBlocked = <built-in method signalsBlocked of QIODevice object at 0x02C2EDA0>
obj.size = <built-in method size of QIODevice object at 0x02C2EDA0>
obj.startTimer = <built-in method startTimer of QIODevice object at 0x02C2EDA0>
obj.staticMetaObject = <PyQt4.QtCore.QMetaObject object at 0x02C4E330>
obj.thread = <built-in method thread of QIODevice object at 0x02C2EDA0>
obj.timerEvent = <built-in method timerEvent of QIODevice object at 0x02C2EDA0>
obj.tr = <built-in method tr of QIODevice object at 0x02C2EDA0>
obj.trUtf8 = <built-in method trUtf8 of QIODevice object at 0x02C2EDA0>
obj.ungetChar = <built-in method ungetChar of QIODevice object at 0x02C2EDA0>
obj.waitForBytesWritten = <built-in method waitForBytesWritten of QIODevice object at 0x02C2EDA0>
obj.waitForReadyRead = <built-in method waitForReadyRead of QIODevice object at 0x02C2EDA0>
obj.write = <built-in method write of QIODevice object at 0x02C2EDA0>
obj.writeData = <built-in method writeData of QIODevice object at 0x02C2EDA0>