The obvious answer is that we need a customer-like demo site that shows how the customer's software interacts with our software.

The problem is that it's a totally back-office kind of relationship. Worse, we don't have solid use cases. We have working software for some use cases, but every conference …

I found CSS Systems , in the Isotoma blog. Which lead me to CSS Systems for writing maintainable CSS from Natalie Downe. That was a "aha!" moment. The problem is that I've been looking at incomplete, poorly-structured examples.

One problem I have with CSS and XPath is the multiple dimensions of …

TP sent me this great link on MVC and related patterns. It's Ctrl-Shift-B's posting, Interactive Application Architecture Patterns . It is helpful at disentangling the distinctions between various kinds of model-view-controller, and model-view-presenter alternatives.

This is important because the terminology gets borrowed and adulterated sometimes. When we look at Struts , we …

There are three reasons, none of them terribly good in isolation.

1. I build business applications, not graphics applications, so the "basic" GTK was precisely what I needed.
2. PyCairo is (to me) a fairly recent innovation, and my GTK knowledge is a few years old.
3. Cairo requires a more complex technology …

Here's a simple graphic application which is built on the graphicApp.py framework. This isn't a beginner's hello world. This is the final project kind of program, and only for a student with some trigonometry background. The basic trig isn't too complex, but would require rather detailed documentation to motivate …

Background.

The suggested environment for learning to program using graphics instead of text was LiveWires . This includes a curriculum and associated product, making it a tidy package.

There are a number of alternatives, however.

• Python includes tkinter , section 20.1 of the Python Library Reference, v2.5.
• Python includes turtle …

Some additional Sugar notes recently appeared in "Plumbing Life's Depths ".

After attending PyCon, I polished up my GTK environment, reloading the current releases. Here's what I did to get a workable PyGTK on my various desktops.

The GTK Technology Stack

Here's an overview of the components of this stack:

1. GLIB …

Here's the full, minimally-edited question:

"We are having a debate about the basic way the UI, Business Logic, and Data Access layers communicate.

My experience has been that the UI talks to the BizLogic, and the BizLogic maps between itself and the Data Access layer.. like this:

::

UI -> BizLogic -> Data …

While "Browser as OS" is what appears to be happening. The browser is the front-end for many applications. Even in the Ajax case, however, the browser is only one piece of the application, and the browser isn't relevant on the server side.

The important point that is missed in the …

A Question:

I would like to build a web browser interface that has capabilities like a spreadsheet.

At the same time, would like to use a tool like OpenROAD from Ingres/CA to do this.

It seems that XUL is the way to go but the entire Mozilla thing is …