TITLE OF PAPER: Nevow: A Web Application Construction Kit
URL OF PRESENTATION: http://nevow.com/Nevow2004.pdf
PRESENTED BY: Donovan Preston
REPRESENTING: divmod.org

CONFERENCE: PyCON 2004
DATE: 20040324
LOCATION: _venue_and_room_in_venue_

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Why Nevow?
    Take advantage of twisted web server
    Dislike code in HTML
    Tools for working with HTML fragments w/o inventing a new language.

Inspirations:
    Woven
    XMLC (Enhydra)
Uninspirations:
    W3C DOM

Talk organized as a tutorial
Demo using simple group calendar /scheduling application

Every URL on the site maps to a Python object
Template driven HTML generation.
Template directives cause execution of Python code.
Patterns are nodes in the HTML template that you can clone
Context stack used to keep track of rendering state.  Due to async single process webserver (twistedweb) - a convenient way to pass content back an forth between pages.

Directives are just tags.

<slides> a bunch of slides describing API/code </slides>

From here on, notes are conceptual comments -- look at the presentation for gory details.

The approach is similar to XMLC, with some clever use of Python in the code that gets called by the directives.
Python methods work by updating the Nevow "DOM" which turns into HTML output.

stan:
    The Nevow lightweight Python DOM.  Very nice and similar to the Groovy MarkupBuilder, at least in syntax.
    Very natural to Python programmers -- highly pythonic API.  A good example of how to make something Pythonic.
    
    
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QUOTES:

"Its ironic that I reinvented the wheel so I wouldn't have to re-invent the wheel"


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REFERENCES: {as documents / sites are referenced add them below}

Nevow: http://nevow.com


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CONTRIBUTORS: {add your name, e-mail address and URL below}
Ted Leung, twl@osafoundation.org, http://www.sauria.com/blog


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