use python API to setup code

[superstar54]

No description provided.

[superstar54]

This raises an error related to the thread, and I don't find a good solution for the moment.

Object '<DbUser at 0x7f08ab67a280>' is already attached to session '4' (this is '2')

Replaed this with #706 .

[danielhollas]

I think the issue here might be that the User instanced is cached, so reloading the profile is not enough. You probably need to bust the cache manually somehow.

[superstar54]

It seems that aside-core does not support creating a new session in a different thread.

[danielhollas]

Maybe a question for @sphuber

[unkcpz]

It seems that aside-core does not support creating a new session in a different thread.

Exactly, we had a long discussion and struggling that we have to replace the direct use of aiida Node as trait for widgets to using UUID because of the similar problem.

@superstar54 good if you can check this PR aiidalab/aiidalab-widgets-base#543. The _get_code is the function that calls the setup_code if I remember correctly. I think the error "Object '<DbUser at 0x7f08ab67a280>' is already attached" is releted.