On Wed, Jun 6, 2012 at 3:25 PM, Tom Bachmann <[email protected]> wrote: > Hi, > > I *think* the reason why basic does not accept keyword arguments is that all > arguments are stored in the tuple self.args, and when providing them by > keyword they have no canonical order any more.
Oh, that makes sense. > I think the best way to go is to do > > class MyClass(Basic): > def __new__(cls, arg1="foo", arg2="bar") > return Basic.__new__(cls, arg1, arg2) > > i.e. to manually provide a canonical argument order. Aha, great. I was feeling uneasy about not supplying any arguments to Basic's __new__. > I don't think this should break anything - plenty of sympy objects provide > their own __new__ (all relying on Basic.__new__ eventually, as far as I > know). Great! Thank you for the explanation! Sergiu -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
