On Tue, Sep 5, 2017 at 10:31 AM, Koos Zevenhoven <k7ho...@gmail.com> wrote: > On Tue, Sep 5, 2017 at 8:24 PM, Yury Selivanov <yselivanov...@gmail.com> > wrote: >> >> On Tue, Sep 5, 2017 at 9:12 AM, Koos Zevenhoven <k7ho...@gmail.com> wrote: >> > On Tue, Sep 5, 2017 at 6:53 PM, Yury Selivanov <yselivanov...@gmail.com> >> > wrote: >> >> >> >> On Tue, Sep 5, 2017 at 8:35 AM, Koos Zevenhoven <k7ho...@gmail.com> >> >> wrote: >> >> > On Tue, Sep 5, 2017 at 3:49 AM, Nathaniel Smith <n...@pobox.com> >> >> > wrote: >> >> [..] >> >> >> >> >> >> I think PEP 550 is sufficient to allow implementing all >> >> >> your proposed APIs (and that if it isn't, that's a bug in PEP 550). >> >> > >> >> > >> >> > That's not true either. The LocalContext-based semantics introduces >> >> > scope >> >> > barriers that affect *all* variables. You might get close by putting >> >> > just >> >> > one variable in a LogicalContext and then nest them, but PEP 550 does >> >> > not >> >> > allow this in all cases. With the addition of PEP 521 and some >> >> > trickery, >> >> > it >> >> > might. >> >> >> >> I think you have a wrong idea about PEP 550 specification. I >> >> recommend you to reread it carefully, otherwise we can't have a >> >> productive discussion here. >> >> >> > >> > I'm sorry, by LocalContext I meant LogicalContext, and by "nesting" >> > them, I >> > meant stacking them. It is in fact nesting in terms of value scopes. >> >> I don't actually care if you use the latest terminology. You seem to >> have a wrong idea about how PEP 550 really works (and its full >> semantics), because things you say here about it don't make any sense. > > > In PEP 550, introducing a new LogicalContext on the ExecutionContext affects > the scope of > any_ > var.set(value) for * > any > * > any_var > . > Does that not make sense?
It does. But your other sentence ".. You might get close by putting just one variable in a LogicalContext and then nest them, but PEP 550 does not allow this in all cases .." does not. Yury _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
