On 2018-02-28 02:46, Matt Arcidy wrote:
> From readability, the examples put forth have been to explain the
> advantage, with which I agree. However, i do not believe this scales
> well.
>
> [(foo(x,y) as g)*(bar(y) as i) + g*foo(x,a) +baz(g,i) for x... for y...]
>
> That's 3 functions, 2 iterators, 3 calls saved ('a' is some constant
> just to trigger a new call on foo). I'm not trying to show ugly
> statements can be constructed, but show how quickly in _n iterators
> and _m functions readability declines.
>
You could put it on multiple lines
> [
> (g * i) + g * foo(x, a) + baz(g, i)
> for x in X
> for y in Y
> for g in [foo(x,y)]
> for i in [bar(y)]
> ]
and then notice a common factor! :)
> [
> g * (i + foo(x, a) + baz(g, i))
> for x in X
> for y in Y
> for g in [foo(x,y)]
> for i in [bar(y)]
> ]
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