[Python-3000] PEP 3124 - Overloading, Generic Functions, Interfaces, etc. (original) (raw)

Steven Bethard steven.bethard at gmail.com
Tue May 15 03:13:01 CEST 2007

On 5/14/07, Phillip J. Eby <pje at telecommunity.com> wrote:

At 04:19 PM 5/14/2007 -0700, Guido van Rossum wrote: >But can you at least share enough of the problem so others can look at >it and either suggest a solution or agree with your conclusion?

Sure. Take a look at peak.rules.core (while keeping in mind all the bits that will be changed per your prior requests): http://svn.eby-sarna.com/PEAK-Rules/peak/rules/core.py?view=markup What you'll notice is that the method combination framework (Method, MethodList, combineactions, alwaysoverrides, and mergebydefault, if you don't count the places these things get called) is in fact most of the code, with relatively little of it being the actual implementation of Around, Before, or After (or even generic functions themselves!).

Seems to me that from this link what we're missing is a good explanation of how "Method" works since that is the base for Before, After, etc. Thus I'd suggest ripping out the Before, After, etc. sections in the PEP, and replacing them with a section on how Method works. You can use Before and After as examples of how to extend Method.

(I'm fine with Before and After being in the module. It's just confusing that they take such a prominent role in the PEP without the mechanism behind them being explained enough.)

STeVe

I'm not in-sane. Indeed, I am so far out of sane that you appear a tiny blip on the distant coast of sanity. --- Bucky Katt, Get Fuzzy

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