Default to not checking for duplicates

[PGijsbers]

Metadata

• Reference Issue: run_model_on_task: make avoid_duplicate_runs=False the default #1143
• New Tests Added: No
• Documentation Updated: Documentation is being rewritten in other PRs, will check back later.
• Change Log Entry: The avoid_duplicate_runs parameter of openml.runs.run_model_on_task and openml.runs.run_flow_on_task now defaults to False instead of True and this default is now configurable from your configuration file.

Details

The main reason for doing this is so that it doesn't require an API key by default. This API key was necessary to check for duplicate runs, because that uses an authenticated flow endpoint (flow/exists).

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 52.69%. Comparing base (a098193) to head (377d31c).

Files with missing lines	Patch %	Lines
openml/runs/functions.py	0.00%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1431      +/-   ##
===========================================
- Coverage    52.75%   52.69%   -0.06%     
===========================================
  Files           36       36              
  Lines         4343     4346       +3     
===========================================
- Hits          2291     2290       -1     
- Misses        2052     2056       +4     

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[PGijsbers]

This was passed a directory... which lead to a silent error and an empty config, which went unnoticed because the values below happened to coincide with the old defaults :D

[LennartPurucker]

LGTM!