On Tue, Sep 11, 2018 at 5:30 PM Simon King <simon.k...@uni-jena.de> wrote: > > Hi Erik, > > On 2018-09-11, Erik Bray <erik.m.b...@gmail.com> wrote: > > On Tue, Sep 11, 2018 at 9:57 AM Kwankyu Lee <ekwan...@gmail.com> wrote: > >> > >> Hi, > >> > >> I wonder why help on a method does not show the signature: > > > > ... > > In the meantime I don't know that there's a satisfactory workaround > > (some kind of Sage-specific solution using decorators to attach > > signature documentation to methods might be a good idea, as would be > > parsing it out of the docstring, though neither of these have been > > implemented to my knowledge). > > Well, there is sage_getargspec, which is supposed to find the signature > of *all* functions/methods in Sage. If it doesn't, I believe it's a bug. > And in Kwankyu's example, it does: > > sage: from sage.misc.sageinspect import sage_getargspec > sage: a = 17 > sage: sage_getargspec(a.quo_rem) > ArgSpec(args=['self', 'other'], varargs=None, keywords=None, defaults=None) > > Actually I thought that `?` and `??` would use sage.misc.sageinspect > rather than Python's "inspect" module, and I am surprised that > apparently it doesn't.
Oh right, thank you for the reminder. I could have sworn there *was* something like that but I couldn't remember what it was. I think it works by parsing the Cython sources IIRC. It still won't work, say, for the built-in methods written in pure C, but there are few (if any?) of those in Sage itself. The ? interface I think still does very little if anything different from its default behavior in IPython, and there are a few tickets I can think of for improving that. Would this be worth opening a ticket for, assuming there isn't one already? -- 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.
