I'm not exactly sure what you mean by "function factorised" but regardless I don't think it's a deep mystery. Just look at Gap.__getattr__
On Fri, Dec 14, 2018, 13:30 Dima Pasechnik <dimp...@gmail.com wrote: > On Fri, Dec 14, 2018 at 11:54 AM E. Madison Bray <erik.m.b...@gmail.com> > wrote: > > > > On Fri, Dec 14, 2018 at 12:17 PM Dima Pasechnik <dimp...@gmail.com> > wrote: > > > > > > On Fri, Dec 14, 2018 at 11:10 AM E. Madison Bray < > erik.m.b...@gmail.com> wrote: > > > > > > > > On Fri, Dec 14, 2018 at 11:55 AM Dima Pasechnik <dimp...@gmail.com> > wrote: > > > > > > > > > > On Fri, Dec 14, 2018 at 10:19 AM E. Madison Bray < > erik.m.b...@gmail.com> wrote: > > > > > > > > > > > > There is also an existing hard-coded list of function names that > are > > > > > > actually what's used for dir() and tab-completion, completely > separate > > > > > > from this module. AFAICT this all_documented_functions module > isn't > > > > > > really used anywhere in Sage, and doesn't turn up much in the > > > > > > documentation. As Alex Konovalov pointed out to me, the > "example" in > > > > > > all_documented_functions of doing `from > > > > > > sage.libs.gaps.all_documented_functions import *` is probably > not a > > > > > > good idea in most cases anyways. For example: > > > > > > > > > > > > sage: DihedralGroup(8) > > > > > > Dihedral group of order 16 as a permutation group > > > > > > sage: type(_) > > > > > > <class > 'sage.groups.perm_gps.permgroup_named.DihedralGroup_with_category'> > > > > > > sage: from sage.libs.gap.all_documented_functions import * > > > > > > sage: DihedralGroup(8) > > > > > > <pc group of size 8 with 3 generators> > > > > > > sage: type(_) > > > > > > <type 'sage.libs.gap.element.GapElement'> > > > > > > > > > > > > Oops, this clobbers multiple existing built-ins in Sage. Alex > also > > > > > > suggested that using IsDocumentedWord like this was perhaps > > > > > > ill-considered in the first place. > > > > > > > > > > > > Given that it isn't actually used anywhere in Sage, and is not > > > > > > particularly documented, and mostly seems to cause problems, it > would > > > > > > be best just to remove this? Does anyone use it? > > > > > > > > > > it's used for tab completion and as well for directly calling > libgap functions > > > > > (otherwise you need to call libgap's function_factory on them): > > > > > > > > It isn't though. You and Volker both seem to be confusing two > > > > different things, unless I'm missing something. > > > In all_documented_functions.py you see > > > > > > for _f in _FUNCTIONS: > > > globals()[_f] = libgap.function_factory(_f) > > > > ... yes, but, module-level code still does not get executed unless the > > module is actually imported at some point, which it isn't. I thought > > the grep output I showed demonstrated this but go ahead and try it > > yourself. Remove both sage.libs.gap.assigned_names and > > sage.libs.gap.all_documented_functions. These modules are not used at > > all by anything. > > > > > and this is exactly the "function_factorisation" of everything in > > > sage.libs.gap.gap_functions > > > > > > So simply removing all_documented_functions.py will break a hell of a > > > lot of code. > > > > > > (although there is of course nothing against merging > sage.libs.gap.gap_functions > > > and sage.libs.gap.all_documented_functions - unless I miss something) > > > > I think you're definitely missing something. > > Indeed, my bad, sorry. I was confusing these with libgap-prefixed things. > I'm OK with removing sage.libs.gap.all_documented_functions > > It's still a mystery to me how some GAP functions are > "function_factorised" though. > > > > > > > > > > > Grep the sources > > > > yourself: The module sage.libs.gap.all_documented_functions is not > > > > referenced anywhere outside of itself: > > > > > > > > $ grep -R all_documented_functions src/sage > > > > src/sage/libs/gap/all_documented_functions.py: sage: from > > > > sage.libs.gap.all_documented_functions import * > > > > > > > > What *is* used to provide directory/tab-completion is a different > > > > module called sage.libs.gap.gap_functions, which just contains a > > > > hard-coded list of strings naming various GAP functions. In fact I > > > > recently updated [1] this list because it contained some globals > which > > > > are not functions, as well as a few that no longer exist: > > > > > https://git.sagemath.org/sage.git/commit/?id=60d7eb69ffa7d402495717148879906639324244 > > > > > > > > Actually, it would be good at least if the list in this module were > > > > tested to ensure it remains valid. When I updated it I did something > > > > like > > > > > > > > for name in common_gap_functions: > > > > try: > > > > func = libgap.eval(name) > > > > except Exception as exc: > > > > print("{} possibly missing? Error: {}".format(name, exc) > > > > continue > > > > > > > > if not IsFunction(func): > > > > print("{}: not a function".format(func)) > > > > > > > > > > > > > > > > > > > > > > On Tue, Dec 11, 2018 at 4:52 PM Volker Braun < > vbraun.n...@gmail.com> wrote: > > > > > > > > > > > > > > This is basically the tab completion list in the Sage/libgap > interface. As you found out, creating it on the fly is way too slow. Hence > we cache a reasonable list of names. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Tuesday, December 11, 2018 at 9:52:53 AM UTC-5, E. Madison > Bray wrote: > > > > > > >> > > > > > > >> In the sage.libs.gap package, in the assigned_names.py > module, there > > > > > > >> is a function called just list_functions() [1] which is > documented to > > > > > > >> "Return the GAP documented global functions". > > > > > > >> > > > > > > >> This is used in the all_documented_functions.py [2] module to > create > > > > > > >> Python wrappers for "all documented GAP functions, they can > be thought > > > > > > >> of as the official API of GAP". > > > > > > >> > > > > > > >> This turns out to create a bit of a problem: The GAP function > > > > > > >> IsDocumentedWord, which this code uses to determine if a > function is > > > > > > >> "documented", works by searching for the function's name in > all > > > > > > >> documentation known to GAP. By default this is just the > standard GAP > > > > > > >> reference docs. However, if you have any GAP packages > installed, it > > > > > > >> will *also* search the docs for those packages. > > > > > > >> > > > > > > >> If you have lots of packages installed that means this is > *extremely* > > > > > > >> slow, even if we're just searching for terms that we only > care about > > > > > > >> being in the main GAP docs. > > > > > > >> > > > > > > >> Though perhaps it is a faulty assumption that this is "the > official > > > > > > >> API of GAP" in the first place. Or at the very least, > perhaps we > > > > > > >> don't really need to care about whether or not the function is > > > > > > >> "documented", and that just returning all global functions is > good > > > > > > >> enough for a first pass. > > > > > > >> > > > > > > >> But I'm not sure. Volker wrote this code originally so he > would know > > > > > > >> best. But what do we want to present as the "API" provided > by Sage's > > > > > > >> GAP interface? > > > > > > >> > > > > > > >> > > > > > > >> > > > > > > >> > > > > > > >> > > > > > > >> > > > > > > >> [1] > https://gitlab.com/sagemath/sage/blob/master/src/sage/libs/gap/assigned_names.py#L118 > > > > > > >> [2] > https://gitlab.com/sagemath/sage/blob/master/src/sage/libs/gap/all_documented_functions.py > > > > > > > > > > > > > > -- > > > > > > > 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. > > > > > > > > > > > > -- > > > > > > 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. > > > > > > > > > > -- > > > > > 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. > > > > > > > > -- > > > > 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. > > > > > > -- > > > 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. > > > > -- > > 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. > > -- > 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. > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. 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