= 1. So here's the problem: you can't even callPyTuple_SetItemunless the Tuple has a ref-count of 1. It looks like the idea here is that you're never supposed to usePyTuple_SetItemexcept right after you create a tuple usingPyTuple_New(). I guess this makes sense, since Tuples ...
( first->terms ); for( Py_ssize_t i = 0; i < end; ++i ) // memset 0 for safe error return - PyTuple_SET_ITEM( terms.get(), i, 0 ); + PyTuple_SetItem( terms.get(), i, 0 ); for( Py_ssize_t i = 0; i < end; ++i ) { PyObject* item = PyTuple_GET_ITEM( ...
PyObject* pTuple = PyTuple_New(3); assert(PyTuple_Check(pTuple)); assert(PyTuple_Size(pTuple) == 3); // set the item PyTuple_SetItem(pTuple, 0, Py_BuildValue("i", 2003)); PyTuple_SetItem(pTuple, 1, Py_BuildValue("f", 3.14f)); PyTuple_SetItem(pTuple, 2, Py_BuildValue("...
str1 = tuple('hello world!') list1 = tuple(['a', 'b', 'c']) dic1 = tuple({'k1': 'v1', 'k2': 'v2'}) set1 = tuple((1, 2, 3)) print(tuple(str1), type(str1)) print(tuple(list1), type(str1)) print(tuple(dic1), type(dic1)) print(tuple(set1), type(set1)...
PyObject *pName, *pModule, *pDict, *pFunc, *pValue; if (argc < 3) { printf("Usage: exe_name python_source function_namen"); return 1; } // Initialize the Python Interpreter Py_Initialize(); // Build the name object pName = PyString_FromString(argv[1]); ...
在本篇文章当中主要给大家介绍 cpython 虚拟机当中针对列表的实现,在 Python 中,tuple是一种非常常用的数据类型,在本篇文章当中将深入去分析这一点是如何实现的。 元组的结构 在这一小节当中主要介绍在 python 当中元组的数据结构: typedefstruct { PyObject_VAR_HEAD ...
(hash_value+3)%self.table_size #向前间隔为3的线性探测 # 存放键值对 def __setitem__(self, key, value): hash_value = self.hashfuction(key) #计算哈希值 if None == self.key_list[hash_value]: #哈希值处为空位,则可以放置键值对 pass elif key == self.key_list[hash_value]: #哈希值...
Python/C API中,为元组操作提供了一系列API,它们都以PyTuple_开头(这也是API命名的规律),例如PyTuple_New(Py_ssize_t size)可创建一个大小为size的元组,PyTuple_Pack(Py_ssize_t size, ...)可以将size个对象(可变参数中提供的)打包为一个元组,PyTuple_SetItem(PyObject *tuple, Py_ssize_t item, Py...
from collections import UserString str1 = 'hello' # MyString类通过继承 UserString 类并添加新的特殊方法 __setitem__ 实现类似列表的操作 class MyString(UserString): def __setitem__(self, index, value): self.data = self.data.replace(self.data[index], value) ustr1 = MyString('hello') pr...
'__mul__','__ne__','__new__','__reduce__','__reduce_ex__','__repr__','__reversed__','__rmul__','__setattr__','__setitem__','__sizeof__','__str__','__subclasshook__','append','clear','copy','count','extend','index','insert','pop','remove','reverse',...