attached files (data "dir")

[marcinofulus]

Files from "data dir attached to sagenb notebooks are not saved.

There is a solution in sws2rst, namely for each name there is a directory created with _files suffix and
internal links are also updated.

[kcrisman]

Correct, this was one of the original issues I raised about .ipynb because there seems to not really be an equivalent notion.

[jdemeyer]

The "equivalent" notion for Jupyter would be just ordinary files on the file system.

[kcrisman]

Sure, but what I mean is how would one bundle this up as an export?