py3k concerns. An example

"Martin v. Löwis" martin at v.loewis.de
Tue Apr 22 20:21:11 CEST 2008


>>> In py3k string%dictionary is going away.
>> Why do you say that? It's not going away in Python 3.0.
> 
> I also got the impression that it was going away.  PEP 3101's abstract
> says:
> 
>     This PEP proposes a new system for built-in string formatting
>     operations, intended as a replacement [sic] for the existing '%'
>     string formatting operator.
> 
> Under "Backward compatibility" it says that both systems can coexist
> "until it comes time to deprecate the older system".

The PEP may say that it's going away, but it doesn't say that it
goes away in 3.0 - and indeed, it won't.

At some point in the future, somebody will likely propose that the PEP
will be executed. At that time, huge flame wars will start. I expect
that they settle in changing the PEP to explain that the old mechanism
gets removed in Python 4, to be release in 2018 :-)

Regards,
Martin



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