http://akaptur.com/blog/2014/08/03/getting-started-with-python-internals/…

https://github.com/upsuper/blog/commit/0214fdd084c4adf2de2ed9912d644fb59ce13a1c +Title: [翻译] AST 模块:用 Python 修改 Python 代码+Date: 2012-03-03 16:47+Tags: PythonCategory: TechniqueSlug: static-modification-of-python-with-python-the-ast-moduleAuthor: Xido…

This article describes the Python threading synchronization mechanisms in details. We are going to study the following types: Lock, RLock, Semaphore, Condition, Event and Queue. Also, we are going to look at the Python internals behind those mechanis…

六.内存管理机制 1.内存管理架构 2.小块空间的内存池 3.循环引用的垃圾收集 4.python中的垃圾收集 1.内存管理架构 Python内存管理机制有两套实现,由编译符号PYMALLOC_DEBUG控制,当该符号被定义时,开启debug模式下的内存管理机制,这套机制在正常内存管理动作外还记录许多关于内存的信息,方便调试. Python内存管理机制被抽象成分层设计: [obmalloc.c] Object-specific allocators _____ ______ ______ ___…

eval:计算字符串中的表达式exec:执行字符串中的语句execfile:用来执行一个文件 需注意的是,exec是一个语句,而eval()和execfile()则是内建built-in函数. 1 2 3 4 5 6 7 8 Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)] on win32 Type "help", "copyright", "credits…

gdb-example-ncurses http://www.brendangregg.com/blog/2016-08-09/gdb-example-ncurses.html 1. The Problem The bcc collection of BPF tools had a pull request for cachetop, which uses a top-like display to show page cache statistics by process. Great! Ho…

JUNE 28TH, 2014Tweet This article describes how Python string interning works in CPython 2.7.7. A few days ago, I had to explain to a colleague what the built-in function intern does. I gave him the following example: >>> s1 = 'foo!' >>>…

""" The main QuerySet implementation. This provides the public API for the ORM. """ import copy import sys import warnings from collections import OrderedDict, deque from django.conf import settings from django.core import ex…

提要: url anchor (ajax) => javascript engine (1~4 articles) => java VM vs. python interpreter => pypy ## 前两天在写<HTTP 初步探究>时,碰见一个问题,放到了 stackoverflow 上,简单讲,就是对于/#wd=keyword 形式的链接,在 Fiddler 抓包里,并没有看见 wd=keyword 被上传到服务器,但最终,keyword 被正确处理了(HTTP 交互…

原文:http://amitsaha.github.io/site/notes/articles/python_linux/article.html In this article, we will explore the Python programming language as a tool to retrieve various information about a system running Linux. Let’s get started. Which Python? When…