[Python-Dev] Re: Stability and change

Guido van Rossum guido@python.org
Mon, 08 Apr 2002 14:25:51 -0400

> Note that Jim often brings up his opinion that the /only/ way to
> guarantee Zope Z.Y.Z works on Python X.Y.Z is to distribute Python
> with Zope.

But I don't think that's what we do any more.  We just tell them to
use 2.1.2.

> (This harkens back to JWZ's much earlier opinion that
> Netscape could never ship using dynamic libraries, because you really
> can't trust anything about the end user's system).  We're really
> touching on much deeper flaws in software development, with no good
> answers, IMO.

I've started to call it the Logajan paradox: he wants his cake (zero
backwards incompatibilities) and eat it too (releases with new
features).  It can't be done.

--Guido van Rossum (home page: http://www.python.org/~guido/)