Matrix input in interacts does not work

[kcrisman]

E.g. http://aleph.sagemath.org/?z=eJxzyMwrSS1KTC7h5UpJTVOI10gsLcmPLy1ISSxJtXVLzClO1XG0zU0sKcqs0AhycdOJjjbUMYjViTbQMYyN1dS04uVSAAJHLUcAjr8V9w==&lang=sage

@interact
def _(auto_update=False,A=matrix(RDF,[[1,0],[0,1]])):
    A*A

This is a pretty serious regression. When did this stop working, I wonder? It works fine in the sagenb and cloud.

[novoselt]

My guess is a long time ago since it seems that the problem is in SageCell code, not in Sage (which is rebased/merged with quite a bit of manual work and room for errors during upgrades). I personally has stopped using it at all because of #424 - really didn't like how the whole grid control had to be submitted and then the "main update" button pressed in addition.

[novoselt]

Also, maybe it has never worked? I think I only used it explicitly like this:
http://aleph.sagemath.org/?z=eJxzyMwrSS1KTC7h5UpJTVOI10gsLcmPLy1ISSxJtXVLzClO1XG0zcwrKC2JTy_KTNEw0lEAotzEkqLMCo0gFzed6GhDHYNYnWgDHcPYWE1NTSteLgUgKCgCGoxbHUSRo5YjAGclJbk=&lang=sage
And then I recall this issue that I had to set a manual "to value" function because of unicode issues.

Sadly, interacts in SageCell, SageNB, and SMC are quite different things in terms of supported parameters, how they work, and how different issues are handled...

[kcrisman]

It definitely worked in Spring (well, late winter) 2013 because I used a very specific one in a class that semester that did work!

Yeah, the interact stuff is not unified. An unrealistic long-term project of mine is to figure out how to get sagenb to have similar to the others - the APIs are not so horribly different - but the nested interacts might need some heavier tools in sagenb, not sure.

[novoselt]

It is a miracle, but the original interact now seems to work as in it does not cause an error and I can even show the matix.

[kcrisman]

Yay!