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PYTHON 源码阅读 - 对象

spring发布于 2018-04-03 09:30查看:1160回复:1

结束休息期, 开始准备面试事宜了, 发现要准备的东西好多(╯‵□′)╯︵┻━┻, 顺手整理下Python源码阅读笔记(力争在写完前找到工作)

参考内容: Python源码 + >

用源代码+说明+图解的方式, 尽量说明白吧, 有一份注释在github上

内容:

PS: 画图的话google doc很好用

好的, 第一篇开始

对象, 在C语言是如何实现的?

Python中对象分为两类: 定长(int等), 非定长(list/dict等)

所有对象都有一些相同的东西, 源码中定义为PyObject和PyVarObject, 两个定义都有一个共同的头部定义PyObject_HEAD(其实PyVarObject有自己的头部定义PyObject_VAR_HEAD, 但其实际上用的也是PyObject_HEAD).

源码位置:

PyObject_HEAD

Python 内部, 每个对象拥有相同的头部.

定义

说明

PyObject

定义

说明

结构

PyVarObject

定义

说明

结构

代码关系

几个方法

跟对象相关的方法

跟引用计数相关的方法

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<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">结束休息期, 开始准备面试事宜了, 发现要准备的东西好多(╯‵□′)╯︵┻━┻, 顺手整理下Python源码阅读笔记(力争在写完前找到工作)<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">参考内容: Python源码 + <code style="border: 0px; margin: 0px; padding: 0px; font-family: Monaco, Consolas, "Andale Mono", "DejaVu Sans Mono", monospace;">></code><p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">用<code style="border: 0px; margin: 0px; padding: 0px; font-family: Monaco, Consolas, "Andale Mono", "DejaVu Sans Mono", monospace;">源代码+说明+图解</code>的方式, 尽量说明白吧, 有一份注释在github上<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">内容:<img src="/Public/forum/ueditor/image/20180403/1522718542312000.png" title="1522718542312000.png" alt="image.png"/><p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">PS: 画图的话google doc很好用<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">好的, 第一篇开始<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">对象, 在C语言是如何实现的?<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">Python中对象分为两类: 定长(int等), 非定长(list/dict等)<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">所有对象都有一些相同的东西, 源码中定义为<code style="border: 0px; margin: 0px; padding: 0px; font-family: Monaco, Consolas, "Andale Mono", "DejaVu Sans Mono", monospace;">PyObject</code>和<code style="border: 0px; margin: 0px; padding: 0px; font-family: Monaco, Consolas, "Andale Mono", "DejaVu Sans Mono", monospace;">PyVarObject</code>, 两个定义都有一个共同的头部定义<code style="border: 0px; margin: 0px; padding: 0px; font-family: Monaco, Consolas, "Andale Mono", "DejaVu Sans Mono", monospace;">PyObject_HEAD</code>(其实PyVarObject有自己的头部定义<code style="border: 0px; margin: 0px; padding: 0px; font-family: Monaco, Consolas, "Andale Mono", "DejaVu Sans Mono", monospace;">PyObject_VAR_HEAD</code>, 但其实际上用的也是<code style="border: 0px; margin: 0px; padding: 0px; font-family: Monaco, Consolas, "Andale Mono", "DejaVu Sans Mono", monospace;">PyObject_HEAD</code>).<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">源码位置: <h3 id="pyobject_head" style="border: 0px; margin: 0px 0px 20px; padding: 0px; font-size: 20px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: "Microsoft YaHei", "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; color: rgb(46, 46, 46); white-space: normal; background-color: rgb(255, 255, 255);">PyObject_HEAD</h3><p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">Python 内部, 每个对象拥有相同的头部.<p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">定义<img src="/Public/forum/ueditor/image/20180403/1522718746104671.png" title="1522718746104671.png" alt="image.png"/>说明<img src="/Public/forum/ueditor/image/20180403/1522718755919063.png" title="1522718755919063.png" alt="image.png"/> <h3 id="pyobject" style="border: 0px; margin: 0px 0px 20px; padding: 0px; font-size: 20px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: "Microsoft YaHei", "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; color: rgb(46, 46, 46); white-space: normal; background-color: rgb(255, 255, 255);">PyObject</h3><p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">定义<img src="/Public/forum/ueditor/image/20180403/1522718765999482.png" title="1522718765999482.png" alt="image.png"/>说明 <img src="/Public/forum/ueditor/image/20180403/1522718774193847.png" title="1522718774193847.png" alt="image.png"/>结构<img src="/Public/forum/ueditor/image/20180403/1522718813348792.png" title="1522718813348792.png" alt="image.png"/><h3 id="pyvarobject" style="border: 0px; margin: 0px 0px 20px; padding: 0px; font-size: 20px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: "Microsoft YaHei", "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; color: rgb(46, 46, 46); white-space: normal; background-color: rgb(255, 255, 255);">PyVarObject</h3><p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">定义<img src="/Public/forum/ueditor/image/20180403/1522718986764571.png" title="1522718986764571.png" alt="image.png"/>说明 <img src="/Public/forum/ueditor/image/20180403/1522718998585056.png" title="1522718998585056.png" alt="image.png"/><p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">结构<img src="/Public/forum/ueditor/image/20180403/1522719007712343.png" title="1522719007712343.png" alt="image.png"/> <h3 id="_1" style="border: 0px; margin: 0px 0px 20px; padding: 0px; font-size: 20px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: "Microsoft YaHei", "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; color: rgb(46, 46, 46); white-space: normal; background-color: rgb(255, 255, 255);">代码关系</h3><img src="/Public/forum/ueditor/image/20180403/1522719018671389.png" title="1522719018671389.png" alt="image.png"/><h3 id="_2" style="border: 0px; margin: 0px 0px 20px; padding: 0px; font-size: 20px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: "Microsoft YaHei", "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; color: rgb(46, 46, 46); white-space: normal; background-color: rgb(255, 255, 255);">几个方法</h3><p style="border: 0px; margin-top: 0px; margin-bottom: 20px; padding: 0px; font-size: 15px; color: rgb(46, 46, 46); font-family: "Microsoft YaHei", 宋体, "Myriad Pro", Lato, "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">跟对象相关的方法<img src="/Public/forum/ueditor/image/20180403/1522719035243781.png" title="1522719035243781.png" alt="image.png"/>跟引用计数相关的方法<img src="/Public/forum/ueditor/image/20180403/1522719046557929.png" title="1522719046557929.png" alt="image.png"/>
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PYTHON 源码阅读 - 对象

PyObject_HEAD

PyObject

PyVarObject

代码关系

几个方法

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PYTHON 源码阅读 - 对象

PyObject_HEAD

PyObject

PyVarObject

代码关系

几个方法

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