[Python-3000] Generic function PEP won't make it in time (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Fri Apr 27 10:21:04 CEST 2007

Guido van Rossum wrote:

Then how do you explain the popularity of zope.interfaces in both the Zope and the Twisted world?

I don't know -- from my point of view, the fact that Zope and Twisted rely on them so much seems like a strangely unpythonic aberration. They don't seem to have caught on in a big way outside those two packages.

Read PEP 3119's Rationale.

I did read it, and it seemed to be nothing more than a proposal to provide a way of doing something that shouldn't be done in the first place, i.e. large-scale use of LYBL.

I see that you're now talking about providing some way of declaring a type as conforming to an ABC after the fact, which does mitigate things somewhat. But I still have large misgivings about the comefromish nature of such a thing, and its close cousins, adaptation and generic functions.

From my point of view, it still seems like a rather elaborate solution in search of a deservingly pressing problem.

-- Greg

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