Hi On Mon, 5 Dec 2022 at 09:38, Nils Bruin <nbr...@sfu.ca> wrote:
> On Sunday, 4 December 2022 at 23:15:35 UTC-8 axio...@yahoo.de wrote: > >> I accidentally opened a new ticket https://trac.sagemath.org/ticket/34824, >> which is essentially ready for review. There is another problem, which I >> do not understand, which may be dealt with in the same ticket, if it is >> easy: >> >> sage: P = ParkingFunctions(4) >> sage: B = P([1, 2, 3, 4, 5, 6]) >> sage: B.parent() >> Parking functions of size 4 >> sage: B in P >> False >> >> I think P.__contains__ contains the answer to that one: > > sage: len(B) == P.n > False > > I suppose B shouldn't be allowed to have P as a parent anyway? This just > looks like shoddy programming -- it looks like you should give > ParkingFunctions a thorough review before trusting what they produce, and > ideally fix the issues you find for the benefit of people who come after > you. > Note sage 9.2 (debian package) gives an error (sage 9.7 does not): 0 jan@jan-desktop:~$sage ┌────────────────────────────────────────────────────────────────────┐ │ SageMath version 9.2, Release Date: 2020-10-24 │ │ Using Python 3.9.2. Type "help()" for help. │ └────────────────────────────────────────────────────────────────────┘ sage: P = ParkingFunctions(4) ....: B = P([1, 2, 3, 4, 5, 6]) ....: --------------------------------------------------------------------------- ValueError Traceback (most recent call last) <ipython-input-1-7be5289b850e> in <module> 1 P = ParkingFunctions(Integer(4)) ----> 2 B = P([Integer(1), Integer(2), Integer(3), Integer(4), Integer(5), Integer(6)]) /usr/lib/python3/dist-packages/sage/combinat/combinat.py in __call__(self, x) 1737 return self._element_constructor_(x) 1738 else: -> 1739 raise ValueError("%s not in %s" % (x, self)) 1740 1741 Element = CombinatorialObject # mostly for backward compatibility ValueError: [1, 2, 3, 4, 5, 6] not in Parking functions of size 4 sage: Regards, Jan -- .~. /V\ Jan Groenewald /( )\ www.aims.ac.za ^^-^^ -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CAAg%3Dp_2FrAAiB7U9yE5YNGumyS1rLkL6xHsFq_OvaG61v3tFAQ%40mail.gmail.com.
