AttributeError精品文章

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  Python的__slots__

  ...__ is {x: 1} b2 = BaseSlots() print b2.__dict__ is , b2.__dict__ # AttributeError: BaseSlots object has no attribute __dict__ b2.x = 1 # AttributeError: BaseSlots2 object has no attribute x b2...

  wenhai.he 2019-07-25 10:17 評(píng)論0 收藏0
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  AttributeError: module 'sys' has no attr

  ...s >>> sys.maxint Traceback (most recent call last): File , line 1, in AttributeError: module sys has no attribute maxint 將 ``` sys.maxint ``` 改為 ``` sys.maxsize ``` 這里是官方文檔, py2 to py3

  pcChao 2019-07-30 18:37 評(píng)論0 收藏0
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  Bottle框架中的裝飾器類和描述符應(yīng)用

  ...[key] def __set__(self, obj, value): if self.read_only: raise AttributeError(Read-Only property.) getattr(obj, self.attr)[self.key] = value def __delete__(self, obj): ...

  Panda 2019-07-30 14:42 評(píng)論0 收藏0
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  [譯] 屬性訪問、特性和描述符 1

  ...lue >>> g.unset Traceback (most recent call last): File , line 1, in AttributeError: Generic object has no attribute unset >>> del g.attribute >>> g.attribute Traceback (most recent call last): ...

  褰辯話 2019-07-24 18:14 評(píng)論0 收藏0
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  Werkzeug Local與LocalProxy等淺析

  ...__[self.__ident_func__()][name] except KeyError: raise AttributeError(name) def __setattr__(self, name, value): ident = self.__ident_func__() storage = self...

  The question 2019-07-31 10:54 評(píng)論0 收藏0
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  Python: 陌生的 metaclass

  ...-------------------------------------------------------------------------- AttributeError Traceback (most recent call last) in () ----> 1 f.name AttributeError: Foo obj...

  miya 2019-07-31 10:52 評(píng)論0 收藏0
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  Python中幾種屬性訪問的區(qū)別

  ...(a) 的基類開始查找。 若查找鏈都獲取不到屬性，則拋出 AttributeError 異常。 __getattr__ 方法 這個(gè)方法是當(dāng)對(duì)象的屬性不存在是調(diào)用。如果通過正常的機(jī)制能找到對(duì)象屬性的話，不會(huì)調(diào)用 __getattr__ 方法。 class A: a = 1 def __getat...

  zhouzhou 2019-07-31 11:19 評(píng)論0 收藏0
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  讓我們一起來構(gòu)建一個(gè)模板引擎（四）

  ... access to attribute {0} is unsafe..format(attr) raise AttributeError(msg) elif toktype == tokenize.OP: pre_op = tokval 效果: >>> from template4c import Te...

  yuxue 2019-07-31 12:21 評(píng)論0 收藏0
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  Python基礎(chǔ)之(四)之集合

  ... Traceback (most recent call last): File , line 1, in f1.add(q) AttributeError: frozenset object has no attribute add >>> f1.remove(r) Traceback (most recent call last): File , line 1, in...

  CKJOKER 2019-07-25 10:53 評(píng)論0 收藏0
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  python裝飾器和描述器的使用總結(jié)

  ...e: return self if self.fget is None: raise AttributeError, unreadable attribute return self.fget(obj) def __set__(self, obj, value): if self.fse...

  xietao3 2019-07-24 18:21 評(píng)論0 收藏0
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  [譯] 屬性訪問、特性和描述符 2

  ...__(self, name, value): if name in self.__dict__: raise AttributeError(Cannot set {name}.format(name=name)) raise AttributeError({__class__.__name__} has no attribute ...

  CloudwiseAPM 2019-07-31 10:50 評(píng)論0 收藏0
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  flask 源碼解析：上下文

  ...部字典。 # 如果訪問或者刪除的屬性不存在，會(huì)拋出 AttributeError。 # 這樣，外部用戶看到的就是它在訪問實(shí)例的屬性，完全不知道字典或者多線程/協(xié)程切換的實(shí)現(xiàn) def __getattr__(self, name): try: return self.__stora...

  Labradors 2019-07-25 11:31 評(píng)論0 收藏0
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  Python 2.7.x 和 Python 3.x 的主要區(qū)別

  ...-------------------------------------------------------------------------- AttributeError Traceback (most recent call last) in () 1 print Python, python_version() ...

  clasnake 2019-07-24 17:34 評(píng)論0 收藏0
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  property在python2和python3中的區(qū)別

  ...-------------------------------------------------------------------------- AttributeError Traceback (most recent call last) in ----> 1 l.weight = 5 AttributeError: can...

  dayday_up 2019-07-31 11:25 評(píng)論0 收藏0
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  __slot__ 限制

  ...性，報(bào)錯(cuò)。 Traceback (most recent call last): File , line 1, in AttributeError: Student object has no attribute score ！！！但是__slots__定義的屬性只對(duì)當(dāng)前類的實(shí)例起作用，對(duì)繼承的子類是不起作用的。除非在子類中也定義__slots__。這樣子類實(shí)...

  lavnFan 2019-07-31 11:18 評(píng)論0 收藏0