图片在Python编程中,当我们在处理文件或网络传输等场景时,有时可能会遇到以下错误信息:"TypeError: a bytes-like object is required, not 'str'"。...总结本文解释了Python中出现错误:"TypeError: a bytes-like object is required, not 'str'"的原因,并提供了几种解决办法。
'wp-load.php'); 引入 WordPress 核心代码,然后执行 WP_Query 获取特定的日志,然后就发生下面的错误: Fatal error: Call to a member function...get() on a non-object in [path to site]\site\wp-includes\query.php on line 27 这是因为全局变量不正确使用引起的问题,默认
TypeError: ‘NoneType’ object is not subscriptable 2019.11.30更新 解决方案: 2019.12.1 更新 解决方案 更新 TypeError:...TypeError: ‘NoneType’ object is not subscriptable 迭代 DataLoader时出现以下错误,暂时不知道怎么解决,向大家求救,是一个比较稀罕的错误,也分享给大家一个奇葩的问题一起讨论...: 'NoneType' object is not subscriptable 用pycharm查询过变量内容,dataloader里边的内容是没有问题的,就是迭代的时候有问题。...: 'NoneType' object is not subscriptable 好像意思是info没有下标不可迭代。...2019.12.1 更新 TypeError: ‘NoneType’ object is not subscriptable. 解决。
解决Python "object is not subscriptable" 的问题编程中,当你尝试使用下标操作符[]来访问对象的属性或元素时,有时会遇到"object is not subscriptable...原因出现"object is not subscriptable"错误的常见原因之一是,你尝试对一个非可迭代对象进行下标操作。...当遇到"object is not subscriptable"的错误时,你可以按照上述的解决方案来检查并修复问题,包括检查对象的类型、确保自定义类实现了__getitem__()方法以及正确访问对象的属性...希望本篇文章能帮助你理解并解决"object is not subscriptable"错误,提高你的Python编程技能。...通过这个示例,我们可以处理JSON数据,并避免出现"object is not subscriptable"错误。
: 'map' object is not subscriptable >>> x = enumerate('hello world') >>> x[3] Traceback (most recent...call last): File "", line 1, in x[3] TypeError: 'enumerate' object is not...subscriptable >>> x = set(range(20)) >>> x[5] Traceback (most recent call last): File "...", line 1, in x[5] TypeError: 'set' object does not support indexing >>> x = zip(range(5...: 'zip' object is not subscriptable 出错原因分析: Python列表、元组、字符串等有序非惰性序列支持按位置随机访问,而字典、集合这样的无序序列不支持按位置随机访问其中的元素
错误如下: TypeError: ‘NoneType’ object is not subscriptable 结果 ?
del x[1] Traceback (most recent call last): File "", line 1, in del x[1] TypeError..."", line 1, in x[1] = 4 TypeError: 'tuple' object does not support item assignment...= 'w' Traceback (most recent call last): File "", line 1, in x[0] = 'w' TypeError...4} >>> x[2] Traceback (most recent call last): File "", line 1, in x[2] TypeError...#52>", line 1, in x[0:3] TypeError: 'set' object is not subscriptable >>> x = [1, 2, 3,
v = dict5.values() print(v[1]) 返回结果: TypeError: 'dict_values' object is not subscriptable 这时候我们可以转换为元祖后再访问试试
不支持使用下标访问其中的元素 >>> x[-1] Traceback (most recent call last): File "", line 1, in x[-1] TypeError...: 'enumerate' object is not subscriptable
= {{1, }, {1, }} print(set_) set_ = {[1, ], [2, ]} print(set_) # 输出结果 set_ = {{1, }, {1, }} TypeError...: unhashable type: 'set' set_ = {[1, ], [2, ]} TypeError: unhashable type: 'list' 为什么报错?...列表中的元素允许重复,集合中的元素不允许重复 列表是有序的,提供了索引操作,集合是无序的,没有索引操作 set_ = {1, 1, 1, 1, 2} set[1] # 输出结果 set[1] TypeError...: 'type' object is not subscriptable 提示该类型不能下标 特殊集合 如何创建一个空集合 set_ = {} print(set_, type(set_)) # 输出结果
""" # 这里是Enum(metaclass=Enum)时用到的,bases=() if not bases: return object, Enum..._member_names_): raise TypeError("Cannot extend enumerations") # base is now...the last base in bases if not issubclass(base, Enum): raise TypeError("new enumerations...__mro__: # most common: (IntEnum, int, Enum, object) # possible: (...# , , # <class 'object
', 'o', 'y', 'h'} >>> s[1] Traceback (most recent call last): File "", line 1, in TypeError...: 'set' object is not subscriptable 但是,有些基本操作对于集合而言是许可的: >>> 'p' in s # 成员检测 True >>> len(s) #...set([[1,2], 3, 4]) # (4) Traceback (most recent call last): File "", line 1, in TypeError...>>> set([{1: 2}, 3, 4]) Traceback (most recent call last): File "", line 1, in TypeError...2)} >>> {([1,2],), 1, 2} Traceback (most recent call last): File "", line 1, in TypeError
_member_names: # 重复定义的 key raise TypeError('Attempted to reuse key: %r' % key) elif not _...这样的情况是如何来实现的呢。...__new__ if bases else object.__new__ # 创建枚举类 enum_class = super()...._value2member_map_[value] except TypeError: # 从 _member_map_ 映射获取 for...这反而不需要讲,这其实继承自 object 就是这样的,不用额外做什么就有的“特性”了。
Users/Administrator/Desktop/aa/"+str(n)+".png")#保存修改像素点后的图片 错误注意 这里需要图片是RGB模式的,不能是L灰度图像,不然会出现如下错误: TypeError...: ‘int’ object is not subscriptable https://stackoverflow.com/questions/8220702/error-int-object-is-not-subscriptable
pythonProj/test2/readDatasetCSVfile.py", line 122, in <module num3 = num2[0:30000] #取前30000个行号的元素 TypeError...: 'NoneType' object is not subscriptable 从这个错误中我们也可以看出来,指明obiect没有类型,其实现在这个num2中是null,什么也没有,因为shuffle
翻译:BioIT 爱好者 原文:TypeError: A Bytes-Like object Is Required, not 'str' | Finxter 简介 目标:在本教程中,我们的目标是修复以下的...: a bytes-like object is required, not 'str' 解析: 如您所见,我们遇到了一个 TypeError 异常:TypeError: a bytes-like object...TypeError: A Bytes-Like object Is Required, not 'str' 是什么?...因此,Python 引发 TypeError。 如何修复 TypeError: A Bytes-Like object Is Required, not 'str'? 有许多解决上述异常的方法。...如何修复 TypeError: A Bytes-Like object Is Required, not 'str'? 请订阅并继续关注,以便将来进行更多有趣的讨论。 Happy coding!
", line 1, in TypeError: 'range' object is not an iterator And unlike an iterator, we...) 1000000 >>> len(squares) Traceback (most recent call last): File "", line 1, in TypeError...[-2] Traceback (most recent call last): File "", line 1, in TypeError: 'generator'...object is not subscriptable And unlike iterators, you can ask them whether they contain things without...Python 3’s range object is not an iterator.
In [20]: even_gen[:3] --------------------------------------------------------------------------- TypeError...Traceback (most recent call last) Input In [20], in () ----> 1 even_gen[:3] TypeError...: 'generator' object is not subscriptable 而且两者有一个致命的区别:生成器表达式只能迭代一次,而列表推导式可以使用很多次,举例如下: In [22]: even_gen
In [77]: type(s) Out[77]: set In [78]: help(set) Help on class set in module builtins: class set(object...) | set() -> new empty set object | set(iterable) -> new set object | | Build an unordered collection...: 'int' object is not iterable In [136]: s.update(["a"], ["b"], "xj") In [137]: s Out[137]: {'a', '...Remove an element from a set if it is a member. ...If the element is not a member, do nothing.
most recent call last): File "test.py", line 9, in print ("dict['Age']: ", dict['Age']) TypeError...: 'type' object is not subscriptable 注:del() 方法后面也会讨论。...recent call last): File "test.py", line 3, in dict = {['Name']: 'Runoob', 'Age': 7} TypeError
领取专属 10元无门槛券
手把手带您无忧上云