[Python-Dev] Why aren't decorators just expressions? (original) (raw)

David Mertz mertz at gnosis.cx
Sat Sep 16 14:23:04 EDT 2017

I always realized the restriction was there, and once in a while mention it in teaching. But I've NEVER had an actual desire to use anything other that a simple decorator or a "decorator factory" (which I realize is a decorator in the grammar, but it's worth teaching how to parameterize custom ones, which is a factory).

I've used barry_as_FLUFL more often, actually... Albeit always joking around for students, not in production covfefe.

On Sep 16, 2017 9:46 AM, "Barry Warsaw" <barry at python.org> wrote:

On Sep 16, 2017, at 02:39, Larry Hastings <larry at hastings.org> wrote:

I'm not proposing that we allow arbitrary expressions as decorators... well, I'm not doing that yet at least. But like I said, the syntax has been this way for 13 years and I don't recall anybody complaining.

Indeed, I can’t remember a single time where I’ve needed that, let alone actually realized the restriction existed. But now that you mention it, I do remember discussions in favor of the more restricted syntax when the feature was originally being debated. I don’t remember the reasons though

-Barry

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