Posts tagged: PYTHON

Python 3.8 (2019) added “assignment expressions”, aka the “walrus operator”.

I generally like things that make Python more expression-oriented, like list comprehensions, but I’m ambivalent about these. It’s pretty easy to impair readability by using them overzealously. Is saving one line of code worth making it harder to notice that an assignment is happening?

However, I’ve found a use case I like a lot. I use them in the Django Python shell when doing exploratory ORM queries.

(Note: this post presumes you have, or want, a CDN in front of your site, which not everybody does. If you are satisfied without one, this post may be moot for you.)

I recently came across WhiteNoise, “Radically simplified static file serving for Python web apps”.

TLDR: Use python-future.

When we were growing our team of Python devs at CMG, I was involved in a lot of interviews. I really enjoyed it, meeting and hiring interesting and talented engineers.

I’m not a big fan of quizzing people on technical minutiae in interviews. I do think that asking some questions about technical likes and dislikes can be very illuminating though.

For example, “What’s your favorite standard library module?” (My favorite answers are itertools or functools, but anything that shows they have hands-on appreciation for the depth of the standard library is good.)

(This is another thing I found myself writing on Quora and wanted to keep. The question was “Does Python have any scalability limitations?”)

“Scalability” is a term people like to throw around, but the less specific you are as to what you mean by it, the less substantial the answers will be. It is not a simple linear measure on which languages can be given some numerical score.

Languages and their implementations do have certain inherent performance characteristics, but in order to understand their relevance to your needs you have to get specific about your needs.