Francisco de la Peña

It may be. Just in case that this hint could we of help: when using the ipympl the issue seems to be more prominent than with the notebook backend.

Some quick comments: 1. In its current implementation, wouldn't ```python >>> s = hs.oneview_is_reader('/Documents/data/OneView_IS_example') ``` be roughly equivalent to ```python >>> s = hs.load('/Documents/data/OneView_IS_example/*/*/*/*.dm4', stack=True, lazy=True) ``` except for the...

I've added this tentatively to the 1.4 milestone. However, I am not fully convinced that adding this feature is a good idea. On the one hand, users will love it....

This is a much needed feature that actually may be almost straightforward to implement because with a bit of luck it might be enough to modify the value2index and index2value...

> I don't really see why we have these, since .isig and.inav do the same thing in a general manner, unless their intention is to save memory in some manner....

@magnunor, thanks for the suggestion. Unfortunately compressing the files doesn't help with this because the source distribution is itself compressed. I've tried compressing all the files with zip and creating...

@sem-geologist, good and useful catch! Somehow I missed the elephant in the room!

If #2049 sounds like a good solution to the issue, I'll merge it and close pypa/warehouse#4659, but not this issue as #2049 is only a temporary solution.

What do you think?

@vidartf, yes, splitting the file formats will require changing the interface and splitting all hspy related parts. @mfm24, who has [an interesting implementation of a dm3/4 reader/writer](https://github.com/mfm24/DM3Utils) suggested doing this...