See this question on Python objects deleting themselves . There was some fundamental confusion about objects, deletion and garbage collection.

Some additional material was posted in an answer (not in the question, where it belongs) making it a little hard to go from question to answers. The original poster's non-answer had …

There's this huge gulf between "protecting" our intellectual property (IP) and making money off our intellectual property. In our case, we have experts creating business models that we embody in some source code as business rules.

What's the IP? The software or the model? Where's the value? Is it out …

How do we provide some kind of admin support/tools/procedures for the sales team?

We know they'll invent new scenarios. We know they'll want to save that configuration. With Django's admin utilities, we can do a "dumpdata" that preserves the interesting parts of the the database. That much is …

We've got a fairly complex application that fits the "broker" pattern. It offers web services and it consumes web services. It does some complex calculations of it's own and it's got a pretty complex database.

One thing I like to have is a "ready for deployment" test suite that exercises …

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 …

After some processing by customers and us and vendors and god-alone-only-knows who else, our statistician has 4 zip files, each about 15Mb.

Step one is to look inside the zip archives and see what we have. Clearly, we can do this any of several ways. Looking manually doesn't get us …

This is a long, sordid story. Maybe a the title should be "Seduced by Technology", rather than "The Business Analyst Lied."

Initially, it sounded like this:

"Our customer asks for a recommendation regarding an offering. Based on the description of the offering, we use web services to get some scoring …

There are two candidate locations on the file system for application components. What are the criteria for choosing among them?

The Python site-packages directory, IMO, is for packages that have two important criteria. First, they have to be widely reusable. Second, they have (or would benefit from) a setup.py …

A Gentle Reader provided references to folks who are distrustful of prepared statements.

See "Prepared Statements, Musings " and "Prepared statements are dead, long live prepared statements ".

In "musings" we're told "...users do not clean up/close unused prepared statements." For this reason, they're bad, and should be avoided. Eventually, "...unless …