[Python-Dev] PEP 453 (pip bootstrapping) ready for pronouncement? (original) (raw)

Barry Warsaw barry at python.org
Sat Sep 28 16:38:48 CEST 2013

On Sep 28, 2013, at 12:48 PM, Stephen J. Turnbull wrote:

shrug I just think the risks are higher than acknowledged (just because you have so far failed to imagine a problem doesn't mean it won't appear), and that the meta effect that "Even Guido admits that Python 3 isn't ready for prime time" is perverse. We know, even those who have written blanket statements to that effect in this thread, that that is false unless conditioned on specific applications.

I understand that the real motivation is that it's churlish to not relieve the pain of users who have decided for their own good reasons to use Python 2.7, and perverse to ignore the needs of the teachers who are going to educate the users about Python 3 at the time they consider appropriate. But the meta-message received by the public is not going to accurately reflect that motivation, and is not going to be helpful in encouraging those who already can move to Python 3 to do so.

FWIW, +1

Anyway, clearly this exception is heading for approval, and the PEP with it. I recommend that the "Feature addition in maintenance releases" section be amended to read in its entirety: The additions of the new module to the standard library in the maintenance releases of 2.7 and 3.3 were granted explicit exceptions to the rule "no new features in maintenance releases." These exceptions were explicitly discussed, and approved in consultation with the affected release managers, separately from the rest of the PEP. They do not represent a change in policy, and must not be considered a precedent for other such exceptions.

Call this the "Bush v. Gore" amendment.

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