RFC: For Loop Invariants

[Peter J. Holzer]

On 2020-04-10 15:44:05 -0500, Elliott Dehnbostel wrote:
> *Consider the following trivial for-loop:*
> 
> chars = "abcaaabkjzhbjacvb"
> seek = {'a','b','c'}
> count = 0
> for a in chars:
>      if a in seek:
>           count += 1
> 
> Gross. Twice nested for a simple count.
> 
[...]
> I propose the following enhancement:
> 
> chars = "abcaaabkjzhbjacvb"
> seek = {'a','b','c'}
> count = 0
> for a in chars if a in seek: count += 1

I don't see much of an enhancement here. You save writing one colon and
one newline here. The code itself is exactly the same. If the original
was gross (I don't agree), then this is just as gross.

        hp

-- 
   _  | Peter J. Holzer    | Story must make more sense than reality.
|_|_) |                    |
| |   | hjp at hjp.at         |    -- Charles Stross, "Creative writing
__/   | http://www.hjp.at/ |       challenge!"
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