Access the config in multiple python files

[charbel-el-khoury]

Is it possible to access the config in multiple modules of a large project.

For example, if I have the following file structure:

project_root/
├── conf/
│   └── config.yaml
└── src/
│   ├── module1.py
│   ├── module2.py
└──main.py

What would be the best practice to access config variables in the functions and classes of module1.py and module2.py? Right now I am passing the DictConfig object as a parameter of the classes and functions in the module. Is there a bettter way to do this?

[odelalleau]

Right now I am passing the DictConfig object as a parameter of the classes and functions in the module.

That's the most common pattern AFAIK. But nothing prevents you from implementing a cfg() utility function that would return the config, or having some kind of "global state" object that would hold the config as global_state.cfg. This is all stuff you need to implement on your own though, I don't think Hydra provides something out of the box for this (though I may be wrong).

[Jasha10]

That's correct, Hydra does not provide dependency injection. The primary APIs for accessing your config are @hydra.main and hydra.compose. Once you get your config from one of those APIs, it's your responsibility to pass the config to the different parts of your app.