I'm looking closely at the Decorators chapter (Part 3, Chapter 6).
And I'm struggling with classmethod. It's a first-class part of Python. And I'm sure there are folks who find it useful.
But I'm struggling to find a "simple" (i.e., under 12 lines of code) example where it might be useful.
Indeed, I'm starting to suffer from a growing feeling that this is one language feature that I can gracefully elide from in-depth to mere mention.
There is a relevant Stack Overflow question: What are Class methods in Python for? But the examples there aren't terribly compelling. Perhaps I have a blind-spot here because I never seen a big need for writing metaclasses. Or perhaps because I don't see a need for creating alternate constructors -- the options in __init__() seem to cover almost all my needs.