[Python-Dev] Proposal to revert r54204 (splitext change)
glyph at divmod.com
glyph at divmod.com
Thu Mar 15 20:17:49 CET 2007
On 05:51 pm, pje at telecommunity.com wrote:
>At 07:45 AM 3/15/2007 +0100, Martin v. Löwis wrote:
>>I apparently took the same position that you now take back then,
>>whereas I'm now leaning towards (or going beyond) the position
>>Tim had back then, who wrote "BTW, if it *weren't* for the code
>>I'd be in favor of doing this."
>If it weren't for the code breakage, I'd be in favor too. That's not
>The point is that how can Python be stable as a language if precedents
>be reversed without a migration plan, just because somebody changes
>mind? In another five years, will you change your mind again, and
>to put this back the way it was?
Hear, hear. Python is _not_ stable as a language. I have Java programs
that I wrote almost ten years ago which still run perfectly on the
latest runtime. There is python software I wrote two years ago which
doesn't work right on 2.5, and some of the Python stuff contemporary
with that Java code won't even import.
>Speaking as a business person, that seems to me... unwise. When I
>out that this change had been checked in despite all the opposition, my
>reaction was, "I guess I can't rely on Python any more", despite 10
>of working with it, developing open source software with it, and
>contributing to its development. Because from a *business*
>this sort of flip-flopping means that moving from one "minor" Python
>version to another is potentially *very* costly.
And indeed it is. Python's advantages in terms of rapidity of
development have, thus far, made up the difference for me, but it is
threatening to become a close thing. This is a severe problem and
something needs to be done about it.
>But as you are so fond of pointing out, there is no "many people".
>are only individual people. That a majority want it one way, means
>there is a minority who want it another. If next year, it becomes more
>popular to have it the other way, will we switch again? If a majority
>people want braces and required type declarations, will we add them?
And, in fact, there is not even a majority. There is a *perception* of
a majority. There isn't even a *perception* of a majority of Python
users, but a perception of a majority of python-dev readers, who are
almost by definition less risk-averse when it comes to language change
than anyone else!
If we actually care about majorities, let's set up a voting application
and allow Python users to vote on each and every feature, and publicize
it each time such a debate comes up. Here, I'll get it started:
According to that highly scientific study, at this point in time,
"Nobody disagrees" :). (One in favor, zero against.)
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