I would definitely appreciate getting deprecation messages in calls to gap(...) as soon as possible!
Kiran On Monday, February 4, 2019 at 7:18:31 AM UTC-8, E. Madison Bray wrote: > > On Mon, Feb 4, 2019 at 2:23 AM Simon King <simon...@uni-jena.de > <javascript:>> wrote: > > > Is the plan to make > > > "gap" and alias of (or a wrapper for) "libgap" in future releases? > > > > I think this would be a good idea in the long run, however would require > > a deprecation period. After all, libgap is not a drop-in replacement of > > gap, and I talk from experience (authoring the p_group_cohomology spkg) > > when I say that the transition from gap to libgap isn't trivial (but is > > a good idea). > > That is my plan but it will be tricky. Currently users expect > gap(...) to run in the pexpect interface (although that's also an > implementation detail that might be opaque to many users). > > So I think the best plan is this: > > 1) All code in Sage that uses GAP must first be ported over to the > libgap interface. This is mostly straightforward but may be > non-trivial in some areas. > > Now the next part is tricky to handle well. Here's one idea, though > it's debatable: > > 2) Add a deprecation message in calls to gap(...) that it will soon > use libgap, and users should switch to that. > > 3) Eventually make gap() an alias for libgap(); at this point the old > pexpect interface will be available and deprecated, but not removed. > > 4) Eventually remove old pexpect interface as well, after a deprecation > period. > > 5) Maybe actually do away with libgap() and keep just gap(). Why have > both, at that point? I think this last part is maybe the most > contentious, but would also be a long way off if at all. > -- 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.
