add tag_entity as backend

[sahithyaravi]

What does this PR implement/fix? Explain your changes.

modified push_tag and remove_tag functions to call tag_entity

How should this PR be tested?

Any other comments?

[mfeurer]

Thanks a lot for your contribution @sahithyaravi1493, this looks like a useful improvement. However, the static style checker in the continuous integration system complains about an unused import. Could you please check that?

Should fix #619.

[codecov-io]

Codecov Report

Merging #667 into develop will increase coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           develop     #667      +/-   ##
===========================================
+ Coverage    90.84%   90.85%   +<.01%     
===========================================
  Files           36       36              
  Lines         3539     3531       -8     
===========================================
- Hits          3215     3208       -7     
+ Misses         324      323       -1

Impacted Files	Coverage Δ
openml/tasks/task.py	95.78% <100%> (-0.09%)	⬇️
openml/datasets/dataset.py	88.51% <100%> (-0.04%)	⬇️
openml/flows/flow.py	94.05% <100%> (-0.13%)	⬇️
openml/runs/run.py	90.15% <100%> (-0.04%)	⬇️
openml/utils.py	92.85% <0%> (+0.79%)	⬆️

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[mfeurer]

Sorry, but there's still an unused import. You can perform this check locally be running bash ci_scripts/flake_diff.sh.

[sahithyaravi]

Sorry, but there's still an unused import. You can perform this check locally be running bash ci_scripts/flake_diff.sh.

No problem, I will run this locally and commit.

[sahithyaravi]

Sorry, but there's still an unused import. You can perform this check locally be running bash ci_scripts/flake_diff.sh.

No problem, I will run this locally and commit.

Ignore my recent commits, there seem to be some more errors.

I could not get flake8 locally to work due to some issues. So I fixed the errors thrown by pyflakes and pep8. However, there seem to be additional errors thrown here. Will check on this.

[mfeurer]

The new errors appear to be errors raised by mypy.

Would it help you if the output of the two checkers would be separated?

[sahithyaravi]

The new errors appear to be errors raised by mypy.

Would it help you if the output of the two checkers would be separated?

Hi Matthias, Yes it would help.

I am unable to run flake8 locally, due to an error caused by a space in my user folder. It seemed to be a bit tricky to rename the user folder. So, I tried to run pyflakes and fix the warnings, assuming it would fix the import errors, but those fixes now resulted in mypy errors.

[mfeurer]

This looks good, thanks a lot!