Stan Schymanski wrote: > Thanks, Laurent. I figured that out, but it is quite tedious to have to > go through each worksheet and change the soln[0][1] to soln[0].rhs(). > There are other things that work differently now and of course there are > new ways how to achieve the same results, which might be more elegant. > However, I don't think this warrants confronting the user with the need > to recode all her previous work. I remember an old thread where WAS and > others expressed their concern for backwards compatibility and not > breaking old code by upgrading to a new version, but this seems to have > been abandoned for quicker progress, I suppose.
Well, it was also a major, major release of Sage (i.e., the change to 4.x version numbers). In particular, the functionality you described was part of the major surgery in Sage internals that was the reason for changing the number to 4.x. I don't know the specifics of why the syntax doesn't work anymore, or if there are plans to support it, but there definitely is the possibility of non-backwards compatible changes with major version number changes. That's part of the reason for the major version number change---to give the user an indication that things may not work exactly as they used to. Hence the need for at > least a possibility to run the old versions in parallel with the new > one, or a conversion tool for old notebooks. I agree that running an old version in parallel is probably the best option at the moment. That and posting to sage-devel to see if there was a reason to break the old syntax. You did that, but apparently no one responded. So you're doing the right thing to bring it back up to make sure it didn't just get lost in the inbox. Can anyone comment on the thread Stan posted earlier? http://groups.google.com/group/sage-support/browse_thread/thread/17c717e8bfbdd367/b2fdb60e1f33b43e#b2fdb60e1f33b43e Thanks, Jason --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
