Avoid visualising all the data of a numpy.ndarray

[omaech]

Problem

In the Python-Blosc2 project we found some problems with the new Jupyter NoteBook version when printing a big array. This is better described in: Blosc/python-blosc2#164

Proposed Solution

It would be nice that when the array is big the output is not the whole data. Instead it could only show the firsts and lasts positions of the array like it did in later versions.

[JasonWeill]

Triage notes: With which version of numpy do you see this behavior? If you saw different behavior before, was it with a different numpy version? If so, which version? It's unclear if this is a bug in Jupyter Notebook or in NumPy.

[JasonWeill]

@omaech Any updates about the questions from earlier?

[RRosio]

@omaech I will go ahead and close this issue due to inactivity but please feel free to reopen it with any updates or information previously requested!