myths about python 3

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On 1/28/2010 8:44 AM, Paul Rubin wrote:
> Steve Holden<steve at holdenweb.com>  writes:
>> Kindly confine your debate to the facts and keep the snide remarks to
>> yourself. Like it or not Python 3 is the future, and unladen swallow's
>> recent announcement that they would target only Python 3 represented a
>> ground-breaking advance for the language.
>
> My take on things is that doing unladen swallow really "right" will
> require yet more incompatible changes; i.e., the result will either
> still leave quite a bit of performance on the table, or else it won't be
> compatible with the current specification of Python 3 and they'll
> presumably have to call it Python 4.  And if Python 4 is as good as I
> believe it could possibly be, then it might get wide acceptance before
> Python 3 really has all that much uptake.  If I have to accept
> incompatibility anyway, and Python 4 gives huge improvements while
> Python 3's improvements are tiny or moderate, why not skip over Python 3?

There's a prime example - it's called Windows Vista! ;)