defcreate_stabil_mat(problem):"""Using the stabilization material stub make it the true material."""fromsfepy.base.baseimportdict_to_struct, debugfromsfepy.fem.functionsimportFunction# Identity map...ns = {'p':'p','q':'q','u':'u','b':'b','v':'v','fluid':'fluid','omega':'...
flow_id=flow_id)# rules created first will get inserted first, and show up last.order_by("creation_time")):ifexc.expirationisnotNoneandnow_datetime > exc.expiration:continuefromrelate.utilsimportdict_to_structrules.insert(0,dict_to_struct(exc.rule))returnrules 开发者ID:lukeolson,项目名称:re...
DictToStruct:def__init__(self,**entries):self.__dict__.update(entries)struct=DictToStruct(**temp) 2. 3. 4.
接下来是new_dict: // Objects/dictobject.c/* Consumes a reference to the keys object */staticPyObject*new_dict(PyDictKeysObject*keys,PyObject**values){PyDictObject*mp;assert(keys!=NULL);if(numfree){mp=free_list[--numfree];assert(mp!=NULL);assert(Py_TYPE(mp)==&PyDict_Type);_Py_N...
在上述示例中,我们首先定义了一个名为MyStruct的ctypes结构体,它包含了三个字段:field1、field2和field3。然后,我们编写了一个名为dict_to_struct的函数,该函数接受一个Python字典作为输入,并返回一个填充了字典值的ctypes结构体。最后,我们使用示例字典my_dict调用dict_to_struct函数,并访问了转换后的ctypes结构体...
struct_dictkeysobject{Py_ssize_tdk_refcnt;Py_ssize_tdk_size;dict_lookup_funcdk_lookup;Py_ssize_tdk_usable;Py_ssize_tdk_nentries;chardk_indices[];/* char is required to avoid strict aliasing. *//* "PyDictKeyEntry dk_entries[dk_usable];" array follows:see the DK_ENTR...
_dictkeysobjectPyDictKeysObject;typedefstruct { PyObject_HEAD Py_ssize_t ma_used; // 该字典中的项数uint64_t ma_version_tag; // 字典版本：全局唯一，每次修改字典时值都会改变 PyDictKeysObject *ma_keys; // 字典键 PyObject **ma_values; // 字典值} PyDictObject;字典...
PyObject是python中所有类型对象的基础,这里不多做介绍,重点跟一下PyDictKeysObject的定义。 [Objects/dict-common.h]struct_dictkeysobject { Py_ssize_t dk_refcnt;/* Size of the hash table (dk_indices). It must be a power of 2. */Py_ssize_t dk_size;/* Function to lookup in the hash ta...
首先来看看构建dict的基础设施: typedefstruct{Py_ssize_t me_hash;PyObject*me_key;PyObject*me_value;}PyDictEntry; 这个结构体为dict中key-value,其中的me_hash为me_key的hash值,[空间换时间]。除此之外,我们发现me_key与me_value都是PyObject指针类型,这也说明了为什么dict中的key与value可以为python中的...
typedef struct { /* Cached hash code of me_key. */ Py_hash_t me_hash; PyObject *me_key; PyObject *me_value; } PyDictKeyEntry; 1. 2. 3. 4. 5. 6. 从源码中可知,一个hash值,这个hash值是根据key运用内置函数hash()来计算的,占用8字节(64位机器)。除了hash值,后面两个是指针,这两个...