"Threads don't promote concurrent I/O."

Kernel threads may. Most of us write user threads. Here's a great summary under Thread (Computer Science).

However, the use of blocking system calls in user threads (as opposed to kernel threads) or fibers can be problematic. If a user thread or a fiber …

Folks like to claim that unit testing absolutely requires each class be tested in isolation using mocks for all dependencies. This is a noble aspiration, but doesn't work out perfectly well in Python.

First, "unit" is intentionally vague. It could be a class, a function, a module or a package …

web2py wins an award -- cool. I really like Django. But...

"Are you implying that a scalable Data Warehouse solution could be implemented using Python and serialised files?"

Not "implying". I'm trying to state it as clearly as I can. A scalable data warehouse solution involves a lot of flat file processing.

ETL, for example, is mostly a flat-file pipeline. It …

We process a fair amount of externally-prepared datasets. 40,000 rows of econometric data that we purchased from a third-party. Mostly, the data is in a usable format: .CSV or .XSLX.

Once in a while, we get CSV with |. A few times, we got fixed-format COBOL-style records.

Recently, we got …

Check out this question on Stack Overflow: "Python: replace a string by a float in txt file".

The question is confusing, but it appears to be a longish and confused description of simple formatting or template substitution. It's hard to be sure, but it sounds like one of Those Things …

I don't want the spamilicious email. I'm trying to actually unsubscribe. The footer says "If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of any information contained in or attached to this communication is strictly prohibited. If you have received this message …

Wednesday night. At 757 Labs. Be there. Here's the details on meetup.com Lacking any other agenda, I'll do some more presentation on the supreme coolness of Django.

Someone sent me this: "“Building Skills in Python” – Steven F. Lott".

I had a vague idea that this book would get some traction. This response was surprising. I guess I should get to work on the upgrades.

And focus on the "no-nonsense" comment.

Just saw this for the first time today: http://cwe.mitre.org/top25/ I'd always relied on this: https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project Both are really good lists of security vulnerabilities. I once had to listen to a DBA tell me that "we don't know what we …