Hi Travis,
On 2013-03-04, Travis Scrimshaw <tsc...@ucdavis.edu> wrote:
> I most likely messed something up when I was doing this the first time
> through...I had a pickling issue come up with number of arguments with the
> classcalls vs. __init__, but I think I solved that differently...
Number of arguments (in particular: default arguments!) is indeed something
that can be taken care of by a __classcall_private__ or a __classcall__
(depending on the situation). Note that one of my current projects is to
automatically take care of default arguments, so that
class Bla(UniqueRepresentation):
def __init__(self, a=3):
<do some init>
would automaticalls yield
sage: Bla() is Bla(3) is Bla(a=3)
(currently, this would require adding a classcall_private)
> I was worried something like Partitions(3) would not be the same as
> Partitions(int(3)),
No. The (weak) cache used in UniqueRepresentation uses a Python
WeakValueDictionary. In particular, the keys are compared by equality.
Hence,
sage: 3.0==3==int(3)==long(3)==NN(3)
True
these different versions of 3 would give *identical* output.
> Could you send me the patch with your
> changes (since trac is currently down, we can't create the followup ticket)?
I am confident the server will soon enough be up. If it isn't by tomorrow,
I'll send you the patch.
Cheers,
Simon
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