[Python-ideas] Proposal: Moratorium on Python language changes

Stephen J. Turnbull stephen at xemacs.org
Thu Oct 22 09:30:50 CEST 2009

Sturla Molden writes:
 > Guido van Rossum skrev:
 > > I propose a moratorium on language changes.

 > Isn't this the same as saying it is time to produce an industry standard 
 > (as in ISO, ECMA, ANSI, IEEE) for the Python language?

No.  The language reference is quite precise and accurate AFAICS.
There may be an argument for an industry standard, but this isn't it.

 > As I see it, the problem is not "language changes", but one
 > implementation (CPython) being the "de facto" Python language
 > standard. Maybe there should be a real Python standard?

Would it make a difference?  Surely the CPython implementation would
still be the de facto "reference interpretation" for resolving

Note that many argue that the success of the Internet is due to
deliberate adherence to a PEP-like process that involves actually
implementing and demonstrating usefulness of new features.  OTOH, the
ISO and other standards bodies are famous for standards produced by
language lawyers.  These standards are sometimes unusable, and too
often ignored in favor of well-known best practices.

In the end, I think it would be hard to convince the developer
community to abandon the PEP process.  So any ISO effort would be
layered on top of it, and CPython would still have distinguished

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