> > This is one very special case where the Parent/Element relation is > broken. First of all FiniteEnumeratedSet is not the parent of its > elements (it is a facade): >
Well, then I am asking whether it is a good idea / should be allowed. We already have a tool to store list of elements without changing them, and it is called a list. It is also much faster. FiniteEnumeratedSet is aimed to not modify the input it gets. So if > you feed it with Python objects which are not elements it will not > complain and you have to go with that. With Stepan we implemented a > TotallyOrderedFiniteSet which has an option for having the behaviour > you expected > I am not looking for a list that wraps its elements, I am writing code for the CartesianProduct category. Are you telling me that the category code has to be written without making the assumption that the elements of a parent have a .parent() function ? If so, don't we have a LOT of code to update ? Nathann -- 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 http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.