基于python的web2pyTM Enterprise Web Framework

python的WEB框架很多,这回又出来一个新的WEB框架:  
    web2py是一个开源的全站式企业敏捷开发框架,能够打造安全的数据库驱动的WEB应用程序.它基于PYTHON,是一个很有创意的新型的MVC WEB开发框架.
    web2py不用安装,不用配置,不用碰 command line,没有其它相关依赖,开个浏览器就可以在线编程.甚至可以运行在USB驱动器上.
    web2py是一站式的解决方案,整个开发过程都可以在游览器上进行,提供了WEB版的在线开发,HTML模版编写,静态文件的上传,数据库的编写.其它的还有日志功能,以及一个自动化的admin接口.
    下载web2py运行后会自动打开一个ADMIN界面,这个界面即用来开发web2py.可以在线创建多个web项目,并且可以把项目打包成.war,方便布署;也可以将整个项目在线编译成.pyc

 

web2py 看起來确实相当先进。差別只在 community 、信任度上 . 如果早一年出來可能注目度会完全不同，现在出來的话要给点时间 

 

官方:

http://mdp.cti.depaul.edu/

 

 

 

 

Why web2py?

 

• No installation, No configuration, No console scripting, No dependencies. It even runs off a USB drive.
• Everything is done through the provided web interface (including development, debugging, testing, maintenantce, deployment, internationalization, and database administration)
• It is portable. Runs on Windows, Mac, Linux, Unix and some cellphones.
• No limitation on licensing of the applications you develop. web2py even allows you to bytecode compile them and distribute in closed-sorce format (as long they do not contain web2py source code, read the license)
• web2py prevents the most common types of vulnerabilities: Cross Site Scripting, Injection Flaws, and Malicious File Execution.
• web2py includes libraries to handle JSON, AJAX, RSS, ATOM, CSV, RTF, XML, XML-RPC, REST, and WIKI markup and can talk to SQLite, MySQL, PostgreSQL and Oracle databases.
• web2py can handle upload and download of very large files.
• web2py also works with third party python libraries. For example, it can talk to Falsh via PyAMF. Here is a tutorial.
• web2py guides the developer to follow well established software engineering patterns such as the Model-View-Controller and testing.
• web2py is really easy to use. To develop with web2py you only need to know Python (the easiest of programing languages) and HTML (compare web2py with PHP).
• web2py includes a web interafce to doctests (the python testing library) which tests functions in your application and generates real-time reports.
• web2py has an appliances repository where new free and ready to use apps are added daily.

A taste of web2py

Consider the following complete application which consists a model (which describes the data representation): db.py

1. 2.

db=SQLDB('sqlite://images.db') db.define_table('image',SQLField('file','upload'))

a controller (which describes the application logic and workflow): images_examples.py

1. 2. 3. 4.

def index(): form=SQLFORM(db.image) if form.accepts(request.vars,session): response.flash='image uploaded' return dict(form=form)

and a view (which describes the data presenation): images_examples/index.html:

1. 2. 3.

{{extend 'layout.html'}} <h1>Upload page</h2> {{=form}}

What does it do?

• Creates the database db in file 'images.db'
• Creates the table 'image' which contains a field called 'file'. If the table exists but does not match the definition it is altered accordingly.
• Creates a web-based database administrative interface for db.image
• Creates a web page called index with upload form for db.image. Try it here
• On upload the file is renamed in a secure way, saved, and the name of the file is stored in a new field db.image record.