Java知识分享网 - 轻松学习从此开始!    

Java知识分享网

Java1234官方群25:java1234官方群17
Java1234官方群25:838462530
        
SpringBoot+SpringSecurity+Vue+ElementPlus权限系统实战课程 震撼发布        

最新Java全栈就业实战课程(免费)

springcloud分布式电商秒杀实战课程

IDEA永久激活

66套java实战课程无套路领取

锋哥开始收Java学员啦!

锋哥开始收Java学员啦!
当前位置: 主页 > Java文档 > Java基础相关 >

Python Standard Library PDF 下载


分享到:
时间:2020-09-17 09:30来源:http://www.java1234.com 作者:小锋  侵权举报
Python Standard Library PDF 下载
失效链接处理
Python Standard Library PDF 下载

本站整理下载:
提取码:mtrk 
 
 
相关截图:
 
主要内容:

1.1 Introduction
Python's standard library covers a wide range of modules. It includes everything from modules that are as much a
part of the Python language as the types and statements defined by the language specification, to obscure modules
that are probably useful only to a small number of programs. 
This chapter describes a number of fundamental standard library modules. Any larger Python program is likely to use
most of these modules, either directly or indirectly. 
1.1.1 Built-in Functions and Exceptions
The following two modules are even more basic than all other modules combined: the _ _builtin_ _ module, which
defines built-in functions (like len, int, and range), and the exceptions module, which defines all built-in exceptions. 
Python imports both modules when it starts up, and makes their content available for all programs. 
1.1.2 Operating System Interface Modules
There are a number of modules modeled after the POSIX standard API and the standard C library that provide
platform-independent interfaces to the underlying operating system. 
The modules in this group include os, which provides file and process operations, os.path, which offers a
platform-independent way to pull apart and put together filenames, and time, which provides functions to work with
dates and times. 
To some extent, networking and thread support modules could also belong in this group, but they are not supported
by all Python implementations.
1.1.3 Type Support Modules
Several built-in types have support modules in the standard library. The string module implements commonly used
string operations, the math module provides math operations and constants, and the cmath module does the same for
complex numbers. 
1.1.4 Regular Expressions
The re module provides regular expressions support for Python. Regular expressions are string patterns written in a
special syntax, which can be used to match strings and extract substrings. 
1.1.5 Language Support Modules
sys gives you access to various interpreter variables, such as the module search path, and the interpreter version.
operator provides functional equivalents to many built-in operators. copy allows you to copy objects. And finally, gc
gives you more control over the garbage collector facilities in Python 2.0.


 

------分隔线----------------------------

锋哥公众号


锋哥微信


关注公众号
【Java资料站】
回复 666
获取 
66套java
从菜鸡到大神
项目实战课程

锋哥推荐