Jan Grewe

Indeed a bit disappointing and I would not like to implement created_at in a different way than the updated_at time-stamp...

Hi @JuliaSprenger actually, it is still valid. In fact, the 1.4.x versions in nix still use the old style odml model. This will change with the 1.5 release and then...

did this happen with the hdf5 backend?! This should be capable of parallel access from multiple processes.

ok, actually the hdf5 lib can do it if a certain flag is set. https://hdfgroup.org/wp/2015/04/parallel-io-why-how-and-where-to-hdf5/ but we do not support it at the moment.

Hi @rgutzen, thanks for the report. I would prefer the more flexible approach. We will talk about it.

Idea of this enhancement is to allow links between entities that exist in different blocks in the same file. It would be very convenient to use this for example to...

I'm not sure about the exceptions. The "fine-grained" exception classes allow us to provide more or less meaningful messages on the nixpy side once the exceptions, for whatever reason, loose...

@gicmo Ah, cool, makes sense. I will check this on the python side. We could then simplify the exceptions on the nix side and also clean up the exception wrapper.

I will clean this up and also replace the runtime-errors.

TODO - replace runtime errors with proper exceptions - separate into logic_errors and _runtime_error, i.e. those in which the user violated the program logic and could do better and those...