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Pyjs official sources. Start here!

README.rst

Pyjs

Pyjs is a port of Google Web Toolkit to Python, and thus enables the development of Rich Media AJAX applications in Python, with no need for special browser plugins. Pyjs contains a stand-alone python-to-javascript compiler, and also a Widget Set API that looks very similar to Desktop Widget Set APIs (such as PyQT4 or PyGTK2).

Pyjs also contains a Desktop Widget Set version, running as pure python, with three useable Desktop ports available. With web-engine technology at it's core, HTML, CSS, plugins and other related features work out-of-the-box.

For more information and documentation, see:

For issue tracking:

Mailing list:

IRC:

Server: irc.freenode.net
Channel: #pyjs

Pyjs-Desktop

Pyjs runs your python application in a Web Browser (as javascript). Pyjs-Desktop runs exactly the same python application on the Desktop (as pure python). There are currently three engine choices, with alternatives in development.

All ports of Pyjs-Desktop require a JSON library: simplejson is recommended if the version of python is 2.5 or less. Python 2.6 and above come with a json library installed by default.

  1. XULRunner

    Install hulahop and python-xpcom. Hulahop, from OLPC SugarLabs, is distributed with both Debian and Ubuntu; python-xpcom is part of XULRunner and is also distributed with both Debian and Ubuntu. Other users should investigate the installation instructions for python-xpcom and hulahop for the operating system of their choice on the appropriate web sites.

    Older versions of XULRunner must be used: versions 1.9.0 or 1.9.1 are known to be suitable, as is version 9.0. Versions 10 and above are known to segfault.

  2. PyWebKitGtk

    The version of pywebkitgtk at http://www.gnu.org/software/pythonwebkit provides full and direct python-equivalent interoperability for all functions for which access through javascript has been provided: thus, Pyjs Desktop will function correctly.

    PyWebkitGtk must be explicitly enabled. create a $HOME/.pyjd/pyjdrc file containing the following two lines:

    [gui] engine=pywebkitgtk

  3. PyWebkitDFB

    This is an experimental but minimally functional engine that is extremely quick to start up. The build dependencies are also drastically smaller than any of the other web browser engines (which indirectly contributes to the fast startup time).

    HTML5 is fully supported, with the exception of Video and Canvas; also missing at present is support for Frames. Despite the present limitations, PyWebkitDFB is highly suited to embedded systems, as well as being useable as an excellent and ultra-quick general-purpose web browser engine.

    PyWebkitDFB must be explicitly enabled. create a $HOME/.pyjd/pyjdrc file containing the following two lines:

    [gui] engine=pywebkitdfb

  4. MSHTML

    For Windows users, all that's required, other than installing python and Internet Explorer, is one further tiny package: Win32 "comtypes".

    Win32 "comtypes" can be downloaded here: * http://sourceforge.net/projects/comtypes/

    Unlike the other ports, which can comprise a whopping great bundle of anything up to 30mb in size, the MSHTML port literally requires nothing more than comtypes, thanks to the far-sighted design of the MSHTML Trident Engine and its extensive COM interface.

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