Output files with objective function value

[finozzifa]

Closes # (if applicable).

The pull request provides the initial ingredient for resolving https://github.com/pypsa-meets-earth/pypsa-earth/issues/495

Changes proposed in this Pull Request

Add output files and output snippet for the objective function value

Checklist

• [x] I consent to the release of this PR's code under the AGPLv3 license and non-code contributions under CC0-1.0 and CC-BY-4.0.
• [x] I tested my contribution locally and it seems to work fine.
• [ ] Code and workflow changes are sufficiently documented.
• [ ] Newly introduced dependencies are added to envs/environment.yaml and doc/requirements.txt.
• [ ] Changes in configuration options are added in all of config.default.yaml and config.tutorial.yaml.
• [ ] Add a test config or line additions to test/ (note tests are changing the config.tutorial.yaml)
• [ ] Changes in configuration options are also documented in doc/configtables/*.csv and line references are adjusted in doc/configuration.rst and doc/tutorial.rst.
• [x] A note for the release notes doc/release_notes.rst is amended in the format of previous release notes, including reference to the requested PR.

[finozzifa]

The pull request does not propose an automatic check of the objective function value as part of the CI/CD, as it is not explicitly requested in #495.

[finozzifa]

Hey @davide-f , thanks!!!

please proceed with merging it when you have time

[davide-f]

Maybe I have been clear my apologies. Why are you proposing to save the results in a txt file?

I think it may be better to print them with logger.info. That will print the results into screen and save the result in the log file.

This will also allow the easy check of the obviective value during review. What do you think?

[finozzifa]

Hi @davide-f , sure I will restore the Snakefile and replace the outputs with a logger.info

[davide-f]

Great @finozzifa :D Many thanks! As CI passes, this is merged :)

[davide-f]

Great @finozzifa :D Merging :)