myths about python 3

Terry Reedy tjreedy at
Wed Jan 27 23:34:23 CET 2010

On 1/27/2010 3:56 PM, John Nagle wrote:

> 2. Python 3 is supported by multiple Python implementations.
> FALSE - Only CPython supports 3.x. Iron Python, Unladen Swallow,
> PyPy, and Jython have all stayed with 2.x versions of Python.

Actually, Unladen Swallow is now targeted at 3.1; its developers have 
conservatively proposed its integration in CPython 3.3. I would not be 
completely shocked if it happens in 3.2.

> Arguably, Python 3 has been rejected by the market.

Almost everything is 'arguable'. Based on experience, Guido never 
expected major uptake until 3.2 (a year away).

 > Instead, there's now Python 2.6,

Just who produced that? and why?

> Python 2.7,

Does not exist yet, but again, coming from the same devs for the purpose 
of helping transition to 3.x.

 > and Python 2.8.

Unlikely to ever exist.

> Python 3 has turned into a debacle like Perl 6, now 10 years old.

You have to wait another 9 years to really say that. However, my 
impression is that Python 3 alreays surpasses Perl 6.

> That's the reality, Python 3 fanboys.

Why are you such a Python 3 hateboy?

Terry Jan Reedy

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