9.tuple #将对象转为元组,跟list函数类似 class tuple(object) | tuple() -> empty tuple | tuple(iterable) -> tuple initialized from iterable's items | | If the argument is a tuple, the return value is the same object. eg. 1 2 3 4 >>> a="123" >>> b=tuple(a) >>>print(b) ...
You’ll learn how to define them and how to manipulate them. When you’re finished, you should have a good feel for when and how to use these object types in a Python program.Take the Quiz: Test your knowledge with our interactive “Python Lists and Tuples” quiz. Upon completion you...
# Define tuples t3 = 1, 2, 3, 'Hello!' t4 = [1, 2, 3], [2, 'A', 'b'], 21.1 6. 使用元组 由于元组是个不可变的列表,那么在不改变其值的情况下,我们还是可以和列表一样访问里面的每个元素。 # Define tuples t1 = (1, 2, 3, 'Hello!') t2 = ([1, 2, 3], [2, 'A', ...
int)ande>0)returnsuper().__new__(cls,f_it)intT=IntTuple((-1,1,2,'yifan',3,[3,3],(...
## define this type using () user = ("xiaoyi", 25, "male") name = user[0] age = user[1] gender = user[2] t1 = () # empty tuple t2 = (2, ) # when tuple has only one element, we should add a extra comma user[1] = 26 # error!! the elements can not be...
# None, 0, and empty strings/lists/dicts/tuples all evaluate to False. # All other values are True bool(None)# => False bool() # => False bool("") # => False bool([]) # => False bool({}) # => False bool(()) # => False ...
An immutable literal expression (except tuples). Consists of string (both unicode and byte) literals and numeric literals.ImplicitSubModuleDefinition An implicit definition of the names of sub-modules in a package. Although the interpreter does not pre-define these names, merely populating them as ...
Similar optimization applies to other immutable objects like empty tuples as well. Since lists are mutable, that's why [] is [] will return False and () is () will return True. This explains our second snippet. Let's move on to the third one,...
ipython 是一个 python 的交互式 shell( i 代表 交互(interaction)),比默认的 python shell 好用得多,支持变量自动补全,自动缩进,支持 bash shell 命令,内置了许多很有用的功能和函数。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Linux 环境还可以使用以下命令安装: ...
// Setup BGE fake module and submodule.sys_modules=PyImport_GetModuleDict();bgemod=PyModule_Create(&bge_module_def);bgesubmod=PyModule_Create(&bge_types_module_def);# defineFT_DEF(Type)\PyType_Ready(&FT_##Type);\PyModule_AddObject(bgesubmod,STRINGIFY(Type),(PyObject*)&FT_##Type);...