[ENH] Replace asserts with proper if else Exception handling

[Omswastik-11]

Fixes #1581

[Omswastik-11]

Hi @fkiraly !! I would like to know you suggestion on this .

In openml\runs\run.py the _generate_arff_dict function is causing the above issue . so I created a new function _get_arff_attributes_for_task to reduce complexity is it ok ? or should I think of a alternate solution ?

[fkiraly]

Yes, looks reasonable for me for a first go, to isolate the if/else in a function.

More generally, from an architecture standpoint however, whenever I see a long list of if/elses on the argument class type, I think it is too high coupling and it should be either a method of the (task/argument) class or a visitor pattern.

Why: imagine you want to add a new task. Now you have to add another elif in all of these functions. This is absolutely not extensible.

This should be refactored - I would say, in another PR, after opening an issue with a plan - so the task itself, or a visitor, manages whatever is in the if/else.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 4.76190% with 40 lines in your changes missing coverage. Please review.
✅ Project coverage is 52.67%. Comparing base (d421b9e) to head (5ccfcc8).

Files with missing lines	Patch %	Lines
openml/runs/run.py	4.54%	21 Missing ⚠️
openml/runs/functions.py	7.14%	13 Missing ⚠️
openml/runs/trace.py	0.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1589      +/-   ##
==========================================
+ Coverage   52.04%   52.67%   +0.62%     
==========================================
  Files          36       36              
  Lines        4333     4342       +9     
==========================================
+ Hits         2255     2287      +32     
+ Misses       2078     2055      -23     

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