This tutorial is copied from youtube.com Here is the link: http://www.youtube.com/watch?v=RXqo3lC-JPI&list=PL6-GrNvaJuAhLWFJVwCC2qHCECEWUJtU6&index=5 I uploaded it to youku.com Hope you guys enjoy it. And here is the source codes: Take notice of t…

Using the Python Interpreter 2.1. Invoking the Interpreter The Python interpreter is usually installed as /usr/local/bin/python on those machines where it is available; putting /usr/local/bin in your Unix shell’s search path makes it possible to star…

作用 对Python对象进行序列化,便于存储和传输 Python对象与JSON字符串相互转换 Python对象转JSON字符串 import json data = [ { 'a' : 1, 'b' : 2, 'c' : 3, 'd' : 4, 'e' : 5 } ] json_str = json.dumps(data, ensure_ascii=False) # 设置ensure_ascii=False以支持中文 print(type(json_str)) print(json_str) 结…

[译]The Python Tutorial#Input and Output Python中有多种展示程序输出的方式:数据可以以人类可读的方式打印出来,也可以输出到文件中以后使用.本章节将会详细讨论. 7.1 Fancier Output Formatting 目前为止已经介绍过两种输出值的方式:表达式语句和print()函数.(第三种方式是使用对象的write()方法:使用sys.stdout引用标准输出文件.详细信息参考库文件参考手册.) 有时候需要对输出有更多的控制,而不是简单的使用空格…

Python Tutorial 学习(八)--Errors and Exceptions恢复 Errors and Exceptions 错误与异常 此前,我们还没有开始着眼于错误信息.不过如果你是一路跟着例程走过来的,你就会发现一下错误信息.在Python里面至少有两类错误:语法错误和异常(syntax errors and exceptions) 8.1. Syntax Errors 语法错误 语法错误就是语法错误,语法错误就是语法错误. 比如说,关键词拼写错误,缩进错误,标点符号错误等等,…

7. Input and Output Python里面有多种方式展示程序的输出.或是用便于人阅读的方式打印出来,或是存储到文件中以便将来使用.... 本章将对这些方法予以讨论. 两种将其他类型的值转换为字符型值的方法:repr()和str(),二者的区别在于,一个是给机器读的,一个是给人读的,str()返回的是更适合人阅读的样式 一些栗子: # coding=utf-8 # local_settings.py DEBUG = True DATABASE_NAME = 'missuor' DAT…

The code for this tutorial can be downloaded here: threadworms.py or from GitHub. This code works with Python 3 or Python 2, and you need Pygame installed as well in order to run it. Click the animated gif to view a larger version. This is a tutorial…

Python is an easy to learn, powerful programming language. It has efficient high-level data structures and a simple but effective approach to object-oriented programming. Python’s elegantsyntax and dynamic typing, together with its interpreted nature…

Guide to Python introspection https://www.ibm.com/developerworks/library/l-pyint/ Guide to Python introspection How to spy on your Python objects   Published on December 01, 2002   What is introspection? In everyday life, introspection is the act of…

[译]The Python Tutorial#Brief Tour of the Standard Library 10.1 Operating System Interface os模块为与操作系统交互提供了许多函数: >>> import os >>> os.getcwd() # Return the current working directory 'C:\\Python36' >>> os.chdir('/server/accesslogs'…