I don't really see a reason to rename it. The old name doesn't suggest that it is implemented with pexpect. The implementation by definition should be an implementation detail, the behaviour is largely the same.
Am Dienstag, 25. Dezember 2018 23:40:00 UTC+1 schrieb Andrey Novoseltsev: > > > > On Tuesday, 25 December 2018 14:55:02 UTC-7, Timo Kaufmann wrote: >> >> Am Dienstag, 25. Dezember 2018 22:46:22 UTC+1 schrieb Nils Bruin: >>> >>> Perhaps for reference, maxima_lib can only be instantiated once and, >>> since sage.interfaces.maxima_lib is only referenced at start-up via >>> lazy_import (which has its own problems), the instantiation happens upon >>> import of sage.interfaces.maxima_lib: >>> >>> sage: import sage.interfaces.maxima_lib >>> sage: sage.interfaces.maxima_lib.MaximaLib() >>> RuntimeError: Maxima interface in library mode can only be instantiated >>> once >>> sage: sage.interfaces.maxima_lib.maxima #already instantiated >>> Maxima_lib >>> >>> The pexpect interface, on the other hand, can be instantiated as much as >>> you want, and separate instances are *not* equal (and they shouldn't be, >>> because generally they would be in quite different states): >>> >>> sage: M1=sage.interfaces.maxima.Maxima() >>> sage: M2=sage.interfaces.maxima.Maxima() >>> sage: M1 == M2 >>> False >>> >>> I would say it would be reasonable to have R_lib follow the same >>> pattern. If it is deemed that maintaining a pexpect interface to R is not >>> worthwhile, then that's a separate decision. >>> >> >> Currently the R instance (which is in the global namespace by default) is >> initialized lazily on first use. The pexpect interface doesn't exist >> anymore. >> > > Given maxima example, I think that indeed the new interface should be > renamed into R_lib (or RLib?) with the same behaviour, while R() should be > a deprecated alias to it explaining what has happened. It is a bit > unfortunate that the change has already happened and 8.5 has "silent > replacement", but there are plans to release 8.6 soon, if I understood > things correctly. To be clear - I do not volunteer to do this, but perhaps > for Timo it will be easy after all the great work he has already done on > this interface ;-) > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
