[Python-Dev] Why aren't decorators just expressions?

Barry Warsaw barry at python.org
Sat Sep 16 12:42:55 EDT 2017


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 - it well could have been an abundance of caution over how far to take the new syntax (and understanding of course that it’s easier to relax than restrict).

-Barry

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