Hold on, why do you want to rule out zero? It seems like a dumb thing to do a search at depth zero, but raising an error rather than returning a trivial result is infuriating to a user.
On Sat, Sep 26, 2015 at 11:06 AM, John H Palmieri <jhpalmier...@gmail.com> wrote: > > > On Saturday, September 26, 2015 at 10:55:57 AM UTC-7, Jori Mäntysalo wrote: >> >> On Sat, 26 Sep 2015, Travis Scrimshaw wrote: >> >> > I would use: >> > >> > if n not in ZZ: >> > raise ValueError(...) >> >> Seems easy. But to make sure: does this work in all cases? I.e. raw Python >> ints, Sage Integers, maybe something else too? At least QQ(3) in NN seems >> to work. >> >> How about positive integers? "n-1 in NN" gives bad error message if n is >> for example string. "n in NN and n>0"? > > > try: > NN(n) > except ValueError: > handle the error.... > > or since you want to rule out n=0: > > try: > NN(n-1) > except (ValueError, TypeError): > handle the error... > > > -- > John > > -- > 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 http://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 http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
