Remove do-operator from pymc-experimental

[twiecki]

Description

@ricardoV94 said that things have stabilized enough to where we can port it to pymc proper. Code can be found here: https://github.com/pymc-devs/pymc-experimental/blob/main/pymc_experimental/model_transform/conditioning.py

[ricardoV94]

This involves moving everything in utils.model_fgraph and model_transform. It probably makes sense to make a submodule model in pymc instead of the single pymc.model.py file that currently exists

[juanitorduz]

I want to support this initiative. The idea is to create a model submodule and have:

model
|-- model.py (this will imply a lot of paths refactors done automatically)
|--model_transform.py  (from pymc experimental)
|--utils
|----model_fgraph.py (from pymc experimental)

Plus, adding tests?

[twiecki]

@juanitorduz That's great! @ricardoV94 will know but it looks correct to me. We should probably find better names for the files though.

[ricardoV94]

I want to support this initiative. The idea is to create a model submodule and have:

model
|-- model.py (this will imply a lot of paths refactors done automatically)
|--model_transform.py  (from pymc experimental)
|--utils
|----model_fgraph.py (from pymc experimental)

The utils isn't needed, just put model_fgraph.py inside the model module.

Plus, adding tests?

All functionality is already tested here, so you just need to port the tests.

[juanitorduz]

Ok! I gave it a shot in https://github.com/pymc-devs/pymc/pull/6879 . I hope I did not mess up anything (do not trust me hehe)

[ricardoV94]

We need to remove it from pymc-experimental now that it's in PyMC