backward compatibility?

Anthony Baxter anthonybaxter at
Sun Aug 22 02:32:55 EDT 2004

On 21 Aug 2004 23:42:32 -0400, Aahz <aahz at> wrote:
> It's serious.  OTOH, they'll stay in the language until Python 3.0 comes
> out, and there's nobody forcing you to upgrade.  The useful lifespan of
> a Python version seems to be about three or four years (my company just
> switched from Python 1.5.2 to Python 2.2, so we'll be two full versions
> out of date by the end of the year).

Note also that Python 3.0 (aka Python 3000) isn't even close to being 
started - I suspect  we're at least 4 or 5 years from it happening. And 
there's still going to be at least a couple more major releases in the 2.x 
cycle before then.

See PEP 3000 for the current collection of ideas for Python 3.0.


More information about the Python-list mailing list