Dear Johan, Thanks a lot, this is very helpful. And I agree that a deprecation warning would have been appropriate and also that keeping the trait_names() method active would help me at least. The problem with the _tab_completion() method is that it is not easily discoverable, as it does not show up when typing units.energy.<tab>. Ironic, isn't it?
Cheers Stan On Wednesday, July 6, 2016 at 1:50:08 AM UTC+2, Johan S. R. Nielsen wrote: > > Hi Stan, > > It seems that trait_names() was originally added as part of a mechanism > for giving tab-completion to certain objects in IPython and the > Notebook, and this mechanism changed. Hence what used to be > trait_names() is now called _tab_completion() -- at least > units.energy._tab_completion() does exactly what > units.energy.trait_names() used to do, after #20410. You should be able > to change your existing code to use that instead. > > But since trait_names() was a public API method, there should have > definitely been added a deprecation warning in #20410 instead of just > simply removing trait_names. Also, it seems the function is useful from > some user-perspectives, such as your own, so perhaps there should be a > publicly accessible version of _tab_completion() as well? > > Best, > Johan > > > Stan writes: > > > Dear all, > > > > After upgrading to 7.2, I found out that things such as > > units.energy.trait_names() do not work any more. I used this extensively > to > > loop through the different unit names and create variable names out of > > them. Why was this removed, and is there another way of doing this? I > want > > to be able to write e.g. 'joule' instead of 'units.energy.joule'. I > found a > > couple of tickets that may have led to the removal of trait_names for > units > > (see below), but I don't understand why, and how I can make my old > > worksheets compatible with sage 7.2! > > > > https://trac.sagemath.org/ticket/20410 > > https://trac.sagemath.org/ticket/19951 > > > > Thanks already for your help. > > > > Cheers > > Stan > > > -- > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
