http://www.laurentluce.com/posts/python-string-objects-implementation/ Python string objects implementation June 19, 2011 This article describes how string objects are managed by Python internally and how string search is done. PyStringObject structu…

http://www.laurentluce.com/posts/python-integer-objects-implementation/ Python integer objects implementation May 15, 2011 This article describes how integer objects are managed by Python internally. An integer object in Python is represented interna…

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!' >>>…

原文链接:The internals of Python string interning 由于本人能力有限,如有翻译出错的,望指明. 这篇文章是讲Python string interning是如何工作的,代码基于CPython2.7.7这个版本. 前一段时间,我向同事解释了python的buil-in函数 intern背后到底做了什么.我给他看了下面这个例子: >>> s1 = 'foo!' >>> s2 = 'foo!' >>> s1 is s2…

Exploring Python Code Objects https://late.am/post/2012/03/26/exploring-python-code-objects.html Inspired by David Beazley's Keynote at PyCon, I've been digging around in code objects in Python lately. I don't have a particular axe to grind, nor some…

String模块中的常量 >>> import string >>> string.digits ' >>> string.letters 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' >>> string.lowercase 'abcdefghijklmnopqrstuvwxyz' >>> string.printable '0123456789abc…

string比较连接 >>> s1="python string" >>> len(s) 13 >>> s2=" python string2 " >>> s=s1+s2 >>> s 'python string python string2 ' >>> >>> cmp(s1,s2) 1 string 截取 >>> s1[0…

Python string replace   方法 方法1: >>> a='...fuck...the....world............' >>> b=a.replace('.',' ') >>> print b    fuck   the    world 方法2: >>> a='...fuck...the....world............' >>> b=string.replace(a,'.',…

因为python的read和write方法的操作对象都是string.而操作二进制的时候会把string转换成list进行解析,解析后重新写入文件的时候,还得转换成string. >>> import string >>> str = 'abcde' >>> list = list(str) >>> list ['a', 'b', 'c', 'd', 'e']>>> str 'abcde' >>>…

    最近在看python标准库这本书,第一感觉非常厚,第二感觉,里面有很多原来不知道的东西,现在记下来跟大家分享一下.     string类是python中最常用的文本处理工具,在python的标准库中,有大量的工具,可以帮助我们完成高级文本处理. capwords()是将一个字符串中的所有单词的首字母大写. import string s = 'The quick brown fox jumped over the lazy dog.' print s print string.capw…