2017-09-01 13:05 GMT-07:00 Chris Barker <chris.bar...@noaa.gov>: > On Thu, Aug 31, 2017 at 5:12 PM, Antoine Pitrou <solip...@pitrou.net> > wrote: > >> I'm skeptical there are some programs out there that are limited by the >> speed of PyLong inplace additions. >> > > indeed, but that could be said about any number of operations. > > My question is -- how can the interpreter know if it can alter what is > supposed to be an immutable in-place? If it's used only internally to a > function, the it would be safe, but how to know that? > I believe Catalin's implementation checks if the object's refcount is 1. If that is the case, it is safe to mutate it.
> > -CHB > > > > -- > > Christopher Barker, Ph.D. > Oceanographer > > Emergency Response Division > NOAA/NOS/OR&R (206) 526-6959 voice > 7600 Sand Point Way NE (206) 526-6329 fax > Seattle, WA 98115 (206) 526-6317 main reception > > chris.bar...@noaa.gov > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: https://mail.python.org/mailman/options/python-dev/ > jelle.zijlstra%40gmail.com > >
_______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
