Re: [sage-devel] Re: Versioning objects

2011-05-29 Thread Robert Bradshaw
On Sun, May 29, 2011 at 1:33 AM, Simon King wrote: > Hi Kwankyu > > On 29 Mai, 07:32, Kwankyu Lee wrote: >> I thought of the proposal while fixing unpickling problem of the patch for >> TermOrder objects for >> >> http://trac.sagemath.org/sage_trac/ticket/11316 > > Thank you for a pointer to an a

[sage-devel] Re: Versioning objects

2011-05-29 Thread Simon King
Hi Kwankyu On 29 Mai, 07:32, Kwankyu Lee wrote: > I thought of the proposal while fixing unpickling problem of the patch for > TermOrder objects for > > http://trac.sagemath.org/sage_trac/ticket/11316 Thank you for a pointer to an actual use case! > The situation I described originally is of co

[sage-devel] Re: Versioning objects

2011-05-28 Thread Kwankyu Lee
Hi Simon, I thought of the proposal while fixing unpickling problem of the patch for TermOrder objects for http://trac.sagemath.org/sage_trac/ticket/11316 The situation I described originally is of course what I faced while fixing the problem. On 27 Mai, 18:10, Kwankyu Lee wrote: > > How do

[sage-devel] Re: Versioning objects

2011-05-27 Thread Simon King
Hi Kwankyu, On 27 Mai, 18:10, Kwankyu Lee wrote: > How does Sage solve the following situation? A user stores objects pickled > in Sage version X.1. Then a developer changes internal logic and data > structure of the class of the objects for Sage version X.2. If we assume the > developer's patch