isotopes not correctly written

[fherwig]

see testing notebook

https://github.com/NuGrid/mesa_h5/blob/master/mesah5_test.ipynb

which can be executed as it on https://astrohub.uvic.ca

[jcpassy]

This is line #163, right? Can you check if this error is still happening with the version on develop?

PS: I am not allowed access the astrohub

[jcpassy]

Ok, this is a more general issue now: one cannot read the isotopes anymore because 'ISO_MASSF' is now its separate dataset while it was before in the 'SE_DATASET'.
I looked at the nugridpy code and this seems easy to solve, but this is an issue for nugridpy. So I suggest to close this issue and create one on the nugridpy repo.