Python TypeError:'NoneType'对象在图像处理中没有属性'__getitem__'
importcv2importnumpyasnpimportmatplotlib.pyplotaspltdefCannyThreshold(lowThreshold):lowThreshold=cv2.getTrackbarPos('Minthreshold','cannydemo')detecte...
Python - TypeError: 'int'对象没有属性'__getitem__'
I'mabeginnerinpythonandi'mhavingtroublewithiteratinginalist.ThisisthepieceofcodeI'mhavingtroublewith:我是python的初学者,我在列表中迭代时遇到了麻烦。这就是我遇到麻烦的代码:forxinlist...
【python问题系列--3】TypeError: 'builtin_function_or_method' object has no attribute '__getitem__'
p0V,p1V,pSpam=trainNBO(array[trainMat],array(trainClasses))改为:p0V,p1V,pSpam=trainNBO(array(trainMat]),array(trainClasses))【python问题系列--3】TypeError:'bu...
Python - 'int'对象没有属性'__getitem__'
I'vesearchedthesite,itistruethereareothertopicswiththesamenameandthesameproblems,butItriedtoreadandapplythechangestomyprogramwithnoresults,soIdecidedt...
property getitem setitem
。。。。。>>>classFoo(object):def__init__(self,name):self._name=name@propertydefget_name(self):returnself._name>>>f1=Foo('yuyang')>>...
类型错误:'int'对象没有属性'__getitem__'错误。
IhavealisttostoretheXandYofbulletsinmygame,andwhenspacebarispushed,itaddsanxandytothelist,andthenitshouldcallbothvaluesanddrawthem.iknowineedtodeletet...
Python TypeError:'NoneType'对象在图像处理中没有属性'__getitem__'
importcv2importnumpyasnpimportmatplotlib.pyplotaspltdefCannyThreshold(lowThreshold):lowThreshold=cv2.getTrackbarPos('Minthreshold','cannydemo')detecte...
Python: TypeError: 'float'对象没有属性'__getitem__'
Iamtryingtoimplementparticlefilteralgorithminpython.Iamgettingthiserror:我正在尝试在python中实现粒子滤波算法。我得到了这个错误:x_P_update[i]=0.5*x_P[i]+25*x_P[i]/(1+x_P[i]**2...
TypeError:'function'对象没有属性'__getitem __'/ Python
IamcurrentlyusingPythontosolveafunctionwiththerkmethod.r8_rkf45isafile,whichhelpstoplotthefunction(http://people.sc.fsu.edu/~jburkardt/py_src/rkf45/rk...
类型错误:'float'对象没有属性'__getitem__' Python NBody模拟。
IwanttomakeN-BodysimulationusingHermiteAlgorithm,butwhenIwritethiscode,Ikeepgettinganerror,thatsaid:我想用Hermite算法做n体模拟,但是当我写这段代码的时候,我总是会出错,说:TypeError:...
浅谈Python类的__getitem__和__setitem__特殊方法
下面小编就为大家带来一篇浅谈Python类的__getitem__和__setitem__特殊方法。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧
localStorage请使用getItem 和setITem
最近看别人的代码,发现他们在从localStorage里面的时候喜欢用dot来操作,而不是getsetItem,记得以前说过这个事。下面再说一次吧。用dot方式来操作( 每次以'hello'=>'world','zhangsan'=>'lisi'来做为例子 )设值localStora...
OpenCV_TypeError: 'NoneType'对象没有属性'__getitem__'
IwasusingOpenCV2.4.6andwasrunningthefollowingcodesuccessfullyfromOpenCVPythonTutorial-我使用OpenCV2.4.6,并成功地从OpenCVPython教程中运行以下代码。importnumpyasnpimportc...
类型错误:'NoneType'对象没有属性'__getitem__'
HiSoIcreatedthisfunctioncalledrunloopg(x,y,z)thatproducesalistbutIcan'tcallanitemonthelist:我创建了一个名为runloopg(x,y,z)的函数,它产生一个列表,但我不能在列表上调用一个项目:p=runloop...
TypeError: 'function'对象没有属性'__getitem__'
Writingsomecodeinpythontoevaluateabasicfunction.I'vegota2darraywithsomevaluesandIwanttoapplythefunctiontoeachofthosevaluesandgetanew2-darray:用python编写...
TypeError:'Response'对象没有属性'__getitem__'
Iamtryingtogetavaluefromaresponseobjectinadictionary,butIkeeprunningintothiserror,amIwronginthinkingyou__getitem__ismorecommonlyusedforindexinginclass...
NoneType'对象没有属性'__getitem__'
Iamgettingthefollowingerrorwhiletryingnova-listclicommandinanopenstacksetup.NoneType'objecthasnoattribute'getitem'我在openstack安装程序中尝试nova-listcli命令时收到以...