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Easy python web framework

Project description

Author: Limodou <>

About Uliweb

Uliweb is a Python based web framework.

This project was created and lead by Limodou <>.


Uliweb is released under BSD license.


Uliweb was not created totally from scratch. It uses some modules created by other developers, for example:

  • Werkzeug Used to handle core processes in the framework. For example: command line tools , URL Mapping, Debug, etc.
  • SqlAlchemy The ORM based on it. Developers can access databases, or use the module separately.

I also referenced some code from other web frameworks, for example:

  • The Templating system is styled after the one used in web2py several improvements were made.

I also constructed a few new “wheels” myself. For example:

  • Form processing module. Developers can use it to create HTML code, validate submitted data and convert submitted data to Python data types.
  • I18n processing including template support, language lazy process.
  • Uliorm, which is an ORM module, was built on top of SqlAlchemy. I also referenced from GAE datastore module.
  • Framework runtime process.
  • Plugin mechanism, styled after the one used in the UliPad project.


  • Organization

    • MVT(Model View Template) development model.
    • App-based project structure.

    Uliweb organizes a project with small apps. Each app can have its own configuration file(settings.ini), template directory, and static directory. Existing apps can be easily reused, but are treated as a compound. web application project if configured as such.

    Developers can also reference static files and templates between apps, thus easing inter-application data exchange. All apps in a project are loaded by default if INSTALLED_APPS is not configured in the configuration file. All separate app configuration files are automatically processed at project startup.

  • URL Mapping

    Flexiable and powerful URL mapping. Uliweb uses werkzeug’s routing module. User can easily define a URL, which in turn can be easily bound with a view function. URLs can also be created reversely according to the view function name. It supports argument definitions in URLs and default URL mapping to a view function.

  • View and Template

    View templates can be automatically applied. If you return a dict variable from view function, Uliweb will automatically try to match and apply a template according to the view function name. And now, Uliweb also support Class View style. I hope you can enjoy it.

  • Environment execution mode

    Each view function will be run in an environment, which eliminates the need to write many import statements. Plus there are already many objects that can be used directly, for example: request, response, etc. This is DRY and saves a lot of coding

    Developers can directly use Python code in a template, the Python code does not neede to be indented as long as a pass statement is added at the end of each code block. Uliweb also supports child template inclusion and inheritance.

  • ORM

    Uliorm is the default ORM module but not configured by default. Developers are free to use any ORM module as preferred. Uliorm supports model creation and automatic database migiration(table creation and table structure modification).

  • I18n

    Can be used in python and template files. Browser language and cookie settings are supported including automatic language switching. Provides a command line tool that developers can use to extract .po files. This can happen either at the app level or project level process. It can automatically merge .pot files to existing .po files.

  • Extension

    Dispatch extension. This is a dispatch processing mechanism that utilizes different types of dispatch points. So you can write procedures to carry out special processes and bind them to these dispatch points. For example, database initicalization, I18n process initialization, etc.

  • Middleware extension

    It’s similar to Djangos. You can configure it in configuration files. Each middleware can process the request and response objets.

    Special function calls in the views module initial process. If you write a special function named begin, it’ll be processed before any view function can be processed, this allows developers to do some module level processing at that point, for example: check the user authentication, etc.

  • Command Line Tools

    • Create app, and include the basic essential directory structure, files and code.
    • Export static files, you can export all available apps’ static files to a special directory.
    • Startup a development web server thats supports debugging and autoreload.
  • Deployment

    • Supports easy deployment on the GAE platform.
    • Supports mod_wsgi, cgi, fast_cgi, scgi, uwsgi.
  • Development

    Provide a development server, and can be automatically reload when some module files are modified.

  • Misc.

    Various demos are available for anyone interested in learning more about Uliweb. It includes all core codes and also all source code of uliwebproject , and some other demo codes, which can be used directly/freely as you wish.

  • static file serving support.

    Uliweb supports static file access directly, and it can also process HTTP_IF_MODIFIED_SINCE and return static file content in trunk.


  • Simple and easy to use web framework.
  • Reusability and configurable are the main ideas about Uliweb.
  • The web framework should be flexiable and easy to extend.

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