Massimo,
Regarding the killer app.
I am finalizing the first version of financial risk management system
for retail banking using your wonderful framework. I have not yet
decided that I release it in open source (I defnitely have several
clients willing to buy it so at least I should sell to them at first).
Mine is not killer app of course, but as an example of what killer
application could be I want to describe why I use web2py:
- ease of use (I came after Rails, love Rails but web2py is just a
pearl of simplicity and ease of learn);
- Python language itself is a benefit, and ability to use rich Python
libraries make development a breeze: I use matplotlib and numpy for
math, reportlab for PDF, dot for graphs generating, glpsol for linear
optimizing and many smaller libs are just easily glued to your app;
- DAL with migrations which I combined with several Python
introspection techniques make possible to express your data models
really in one place, no config files, no data dictionary dependance,
DRY with elegance (see example * below);
- DB agnostic: some of my clients will use Oracle as they have enough
money for that; others will use My- or PostgreSQL, and for demo
versions I will give them SQLite version... all in the same code and
no effort from app developer;
- platform agnostic (develop on Mac, use on Windows) and possibility
to market application as server based or desktop (due to ease or
launching on client PC);
- easy integration of offline processing (much of my code is data
processing that is going on during data import, not web interactions;
and that was a breeze to integrate old python code that worked for me
into DAL etc., again everything uses DRY approach and same data model
is used for data processing and for web);
- rapid development (things like SQLTABLE, session object etc. make
things working in one evening).
As a result I see one possible killer app - an open source rival of
AIR desktop app framework where you provide web2py/sqlite backend and
maybe a wrapper application showing just webkit browser window in
various platforms; this wrapper application could easily be a
modification of your Tcl launcher which now asks password and shows
activity chart. So, a launcher of web2py that does not open a browser
but displays webkit frame inside its window, already pointing to
localhost:3000. Of course it would use Ajax instead of Flash for GUI
richness.
Example *
AdvantageField(T('FAMILY_IN_REESTR'), 'double', default=0.0,
adv_interlinks="find_close_f_in_reestr(NAME_F_TRANSLIT)",
adv_hist=True, adv_impact=True,
graph_level=0.6,
fuzzy_centers="0.0 0.5 1.0",
fuzzy_sigmas="0.3 0.3 0.3")
this single line is a subclass of SQLField, goes into db.define_table
and additionally sets up international label for the field, various
math parameters and calls function for data preprocessing during data
import from CSV.
On Mar 16, 10:09 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
> Both you and Joe make good points.
>
> I think KPAX once integrated with T3 can be a killer app.
> What else? looking for ideas?
>
> Massimo
>
> On Mar 16, 1:55 pm, Jeffield <jeff.sheffi...@gmail.com> wrote:
>
> > just my 0.2
> > write some killer apps, fans will follow.
> > -- note, I have not written any, but I am trying ;)
>
> > Thanks,
> > Jeff
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