On May 31 2016, Paul Moore <p.f.moore-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
On 31 May 2016 at 20:57, Nikolaus Rath <Nikolaus-BTH8mxji4b0@public.gmane.org> wrote:
On May 31 2016, Paul Moore <p.f.moore-Re5JQEeQqe8AvxtiuMwx3w-XMD5yJDbdMReXY1tMh2IBg@public.gmane.org> wrote:
Technically, the "export key" approach could probably me made readable in a way I'd be OK with, for example:
export key from query_result ( product_id, quantity, distributor, description )
but I'm not at all sure that needing 2 new keywords ("export" and "key") and a reuse of an existing one ("from") is going to fly - it's too wordy, feels like SQL or COBOL to me. Maybe if someone comes up with a one-word option for "export key from" then it would be viable...
How about
unravel query_result (this, that, something)
Meh. Don't assume that if you come up with a good word, I'll be in favour. At best, I'll go from -1 to -0 or maybe +0. Should we get to something that looks reasonably attractive to me, there's still issues with the whole thing being a niche problem, limited applicability (by leaping at "unravel" you lost the ability to extract attributes from an object - did you mean to do that?), etc.
Basically, don't waste too much time trying to convince me. A better bet would be to get sufficient support from others that my opinion is irrelevant (which it may well be anyway :-))
Nah, I think I don't like my own idea anymore. I think the whole issue is much better addressed by using an assignment with a placeholder on the LHS. This also solves the DRY problem when creating things like namedtuples: d = query_result product_id = q[$lhs] quantity = q[$lhs] distributor = q[$lhs] description = q[$lhs] # or my_favorite_named_tuple = namedtuple($lhs, "foo bar com") $lhs would be a special construct that is only allowed in the RHS of an assignment statement and evaluates to a string representation of the identifier on the LHS. But since I don't have time to learn how to extend the Python parser, I will shut up about this now. Best, -Nikolaus -- GPG encrypted emails preferred. Key id: 0xD113FCAC3C4E599F Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F »Time flies like an arrow, fruit flies like a Banana.«