web2py 1.65.7

web2py 1.65.7 functions as a free and open source full-stack enterprise framework for agile development of quick, scalable, secure and portable database-driven web-based applications.

The best way to understand web2py is to try it. You can try it online here. This online version is identical to the actual web2py although some functions are disabled for security reasons.

web2py was inspired by Ruby on Rails and, as Rails, it focuses on rapid development and follows a Model View Controller design. web2py differs from Rails because it is based on Python (thus it is faster and more scalable), because it provides a comprehensive web-based administrative interface (thus there is no need to ever type shell commands unless you wish), includes libraries to handle more protocols (for example XML-RPC and RSS feeds), and can run on the Google App Engine.

web2py was also inspired by Django and, as Django, it has the ability to generate forms from database tables and it includes an extensive set of validators. web2py differs from Django because it is more compact, easier to learn and does not have any project-level configuration files.

web2py is less verbose than Java-based frameworks and its syntax is much cleaner than PHP-based frameworks. This makes applications simpler to developer, easier to read and maintain.

Major Features:

1. Runs on Mac, Linux, Windows, Windows Mobile, and on the Google App Engine
2. Requires no installation and can run off a USB drive
3. Has no configuration files. You just unzip it and click on it
4. Includes a multi-threaded wsgi-compliant web-server (also works with Apache and others)
5. Includes a transaction-safe relational database (sqlite)
6. Includes a web-based integrated development environment (demo)
7. Includes a ticketing system to help you debug deployed applications
8. Includes a sophisticated Database Abstraction Layer that can handle joins, left joins, nested selects, aggregates, transactions and distributed transactions. Writes SQL code for you, transparently and in real time, for SQLite, PostgreSQL, MySQL, MSSQL, FireBird, Oracle and IBM DB2 (since 1.58)
9. Automatically generates a web-based database administrative interface for your applications
10. Prevents the most common types of vulnerabilities: Cross Site Scripting, Injection Flaws, and Malicious File Execution
11. Enforces good Software Engineer practices (Model-View-Controller design, Server-side form validation, postbacks)
12. Includes internationalization support and a web based translation interface
13. Includes functions for caching in ram, disk, memcache and combinations thereof
14. Includes libraries for Authentication (login, logout, registration, change password, etc.)
15. Includes libraries for Authorization (Role Based Access Control)
16. Includes libraries to generate and process Create/Update forms directly from a database
17. Includes libraries to handle HTML, ATOM, RSS, RTF, JSON, AJAX, XML-RPC, CSV, REST, WIKI
18. Works with Flash/Flex via PyAMF and Google Web Toolkit via Pyjamas
19. Includes jQuery for Effects and Ajax
20. Includes a powerful Python-based template language to render objects into HTML or other text-based protocols
21. Handles automatically upload and download streaming for large media files
22. Includes portable cron mechanism for creating and running recurrent tasks in background
23. Allows to bytecode-compile applications and distribute them in closed source
24. Backward compatibility is guaranteed for the web2py API since 1.0