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usenet-nospam at seebs.net
Wed Nov 3 21:39:47 CET 2010
On 2010-11-03, Steven D'Aprano <steve at REMOVE-THIS-cybersource.com.au> wrote:
> On Wed, 03 Nov 2010 01:25:56 +0000, Seebs wrote:
>> Whitespace damage is, indeed, wrong. It's a bad thing. It is an
>> *extremely common* bad thing,
> I question that.
> You've claimed that you have to deal with broken indentation on a regular
I'd guess I see something which got screwed up somehow every couple of
weeks, usually while refactoring stuff.
>> and I fundamentally don't think it was a
>> good choice to build a system with no redundancy against it.
> Python does have some redundancy against indentation mangling. Not all
> combinations of indentation are legal.
True, but it doesn't seem to catch the most common failure modes.
> And so on. True, there are some failure modes which can't be easily
> recovered from without reading and understanding the code. That's okay.
> Such failure modes are vanishingly rare -- for every twenty thousand
> braces you avoid typing, you might, if you're unlucky, need to fix an
> instance of broken indentation.
This is ridiculous overstatement. Moving a single block of overly-nested
code out into a separate method could generate several indentation
mishaps if Something Goes Wrong, which it does sometimes. I haven't
written more than a couple hundred blocks in Python, so I'm a factor of a
hundred out from twenty thousand braces, and I've had six or seven
And yes, I can just recreate it, but it takes more effort, since I can't
do things like just handing it to an automated tool that can correct
it completely automatically.
Furthermore, I don't WANT to skip closing braces. EXPLICIT IS BETTER
THAN IMPLICIT. I *WANT* to have the beginnings and ends marked.
I want end braces or "end" or something at the end of a block for
the same reason that I prefer:
x = "hello, world"
x = "hello, world
where we just assume the string ends at the end of the line.
>> "redundant" information saves our hides on a regular basis in an
>> imperfect world.
> So you say.
Well, it works for me.
Copyright 2010, all wrongs reversed. Peter Seebach / usenet-nospam at seebs.net
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