[Bug] return configuration variable from hydra.main function

🐛 Hydra return config variable

I try to return the config from a function but get a None return instead. I am trying to keep the config as a global variable for other modules to import the config

To reproduce

import hydra
from omegaconf import DictConfig

from runner import Runner


@hydra.main(config_path="config_hydra/config.yaml")
def my_app(cfg : DictConfig) -> DictConfig:
    # print(cfg.pretty())
    return cfg



if __name__ == "__main__":
    cfg = my_app()
    print(cfg)

** Minimal Code/Config snippet to reproduce **

** Stack trace/error message **

None
// Paste the bad output here!

Expected Behavior

System information

Additional context

Add any other context about the problem here.

[noklam]

Thank you! That helps.

[krishnachaitanya7]

I encountered this thread because some of the debugger frames were getting lost when there is an error in the function encapsulated by the Hydra decorator. Hence I was trying to get the config in the same way as @noklam did.

It turned out it’s already solved in this PR #930

To not lose any debugger stack frames, set HYDRA_FULL_ERROR to 1. That should do the trick.

I hope that helps!