On Tue, Aug 26, 2008 at 3:59 AM, Simon King <[EMAIL PROTECTED]> wrote: > > Dear Sage team, > > i am puzzled by the fact that introspection does not work for the hash > method, while it works for other special methods. > > I applied Martin's patch for ticket #3724, which provides a new hash > method for matrices over GF(2) and also contains examples in the doc > string. But the doc string seems invisible for introspection: > > sage: M = MatrixSpace(GF(2),10000,10000).random_element() > sage: M.__hash__? > Type: method-wrapper > Base Class: <type 'method-wrapper'> > String Form: <method-wrapper '__hash__' of > sage.matrix.matrix_mod2_dense.Matrix_mod2_dense object at 0x31909e0> > Namespace: Interactive > > The same happens with > sage: L=(1,2) > sage: L.__hash__?? > > The same also happens if i apply it to the hash methods of the > extension classes that i created. > > Is it a bug of introspection? > Martin suggested i shall open a ticket for it, but i wanted to ask > here - perhaps i did something stupid, and the doc string is supposed > to be gotten in a different way? >
It might just be a limitation of Python. I certainly have no clue how to introspect on that method. You can file a ticket, but I don't know if it is even possible to resolve this. It's definitely a shortcoming of Sage/Python, and having all such shortcomings systematically enumerated is a good thing. -- William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
