Migrate to f-strings in .\python-package\lightgbm\sklearn.py

[akshitadixit]

Related to #4136

I did not touch the normal strings since the issue quoted:

Migrate all Python code from old-fashioned format() functions, formatting % operators and simple concatenations (+) to modern f-strings

Please let me know of possible edits.

[jameslamb]

Thanks very much for taking this on! Before we review the changes to sklearn.py, please see my note about removing the unrelated changes from #4175.

[jameslamb]

I think these unrelated changes may have shown up because you created #4175 from master instead of a separate branch on your fork.

Could you please remove them?

I think you'll need to do the following.

1. close Add alt text for gcc-tips #4175
2. create a new branch from your local master

git checkout master
git checkout -b docs/gcc-alt-txt
git push origin docs/gcc-alt-txt

3. Open a new pull request for the gcc-tips documentation, from the branch docs/gcc-alt-txt
4. reset master locally and on your fork to LightGBM's master

# delete local master branch
git branch -D master

# add LightGBM official repo as another remo
git remote add upstream git@github.com:microsoft/LightGBM.git

# get master branch from LightGBM official repo
git fetch upstream master
git checkout master

# overwrite your fork's "master" branch with the official LightGBM one
git push origin master --force

5. Rebase this branch to that new master

git checkout akshita_fstrings
git rebase master
git push origin akshita_fstrings --force

Let me know if you have any questions about that, we're here to help!

[akshitadixit]

Doing that right away!

[akshitadixit]

Sorry about the mess, I will create fresh PRs

[github-actions]

This pull request has been automatically locked since there has not been any recent activity since it was closed. To start a new related discussion, open a new issue at https://github.com/microsoft/LightGBM/issues including a reference to this.