[Python-Dev] Internal representation of strings and Micropython (original) (raw)

Paul Sokolovsky pmiscml at gmail.com
Fri Jun 6 12:15:31 CEST 2014

Hello,

On Thu, 5 Jun 2014 22:38:13 +1000 Nick Coghlan <ncoghlan at gmail.com> wrote:

On 5 June 2014 22:10, Stefan Krah <stefan at bytereef.org> wrote: > Paul Sokolovsky <pmiscml at gmail.com> wrote: >> In this regard, I'm glad to participate in mind-resetting >> discussion. So, let's reiterate - there's nothing like "the best", >> "the only right", "the only correct", "righter than", "more >> correct than" in CPython's implementation of Unicode storage. It >> is arbitrary. Well, sure, it's not arbitrary, but based on >> requirements, and these requirements match CPython's (implied) >> usage model well enough. But among all possible sets of >> requirements, CPython's requirements are no more valid that other >> possible. And other set of requirement fairly clearly lead to >> situation where CPython implementation is rejected as not correct >> for those requirements at all. > > Several core-devs have said that using UTF-8 for MicroPython is > perfectly okay. I also think it's the right choice and I hope that > you guys come up with a very efficient implementation.

Based on this discussion , I've also posted a draft patch aimed at clarifying the relevant aspects of the data model section of the language reference (http://bugs.python.org/issue21667).

Thanks, it's very much appreciated. Though, the discussion there opened another can of worms. I'm sorry if I was somehow related to that, my bringing in the formal language spec was more a rhetorical figure, a response to people claiming O(1) requirement. So, it either should be in spec, or spec should be treated as such - something not specified means it's underspecified and implementation-dependent. I'm glad that the last point now explicitly pronounced by BDFL in the last comment of that ticket (http://bugs.python.org/issue21667#msg219824)

Cheers, Nick. -- Nick Coghlan | ncoghlan at gmail.com | Brisbane, Australia

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-- Best regards, Paul mailto:pmiscml at gmail.com

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