On Fri, 8 Sep 2017 02:24 am, Chris Angelico wrote: > On Fri, Sep 8, 2017 at 1:30 AM, Steve D'Aprano > <steve+pyt...@pearwood.info> wrote: >> On Fri, 8 Sep 2017 12:28 am, Chris Angelico wrote: >> >>> languages without mutable objects don't >>> really care whether they're pass-by-X or pass-by-Y. >> >> Only if you don't care about efficiency. >> >> Believe me, the first time you pass a five gigabyte array to a function using >> pass-by-value, on a machine with only six gigabytes of memory, you'll care. [...] > Right - but sharing (in whatever form) is a pure optimization, with no > visible semantics.
Apart from the disk activity light on your PC, as it starts thrashing :-) -- Steve “Cheer up,” they said, “things could be worse.” So I cheered up, and sure enough, things got worse. -- https://mail.python.org/mailman/listinfo/python-list
