Allow loading tasks without downloading split files #1245

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1. mfeurer

   added

   module:DataOpenML conceptOpenML concept

   on Apr 17, 2023
2. PGijsbers

   added

   module:TaskOpenML ConceptOpenML Concept

   on Apr 24, 2023
3. OmarAI2003 commented on Nov 15, 2025

   

   OmarAI2003

   on Nov 15, 2025

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   I'm interested in this issue and plan to explore it in the coming days.
4. OmarAI2003 commented on Nov 21, 2025

   

   OmarAI2003

   on Nov 21, 2025

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   Hi @mfeurer! 👋

   I analyzed the codebase and found that download_splits parameter already exists in method get_task(), and defaults to false in this PR #1345 in commit 2581671 by @PGijsbers

   Should this issue be considered as completed, or is there additional work needed to provide some true lazy loading?

   The only thing I noticed is that the method get_train_test_split_indices (line 154)

   openml-python/openml/tasks/task.py

   Line 154 in 4b1bdf4

   def get_train_test_split_indices(

   , downloads split files automatically; it doesn't respect the user's intent to avoid downloading splits and will fetch them even when download_splits=False.

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   👍React with 👍2Reacted by Apex_Levo and Pieter Gijsbers
5. AtharvaManale commented on Oct 5, 2026

   

   AtharvaManale

   on Oct 5, 2026

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   Hi @mfeurer! 👋
   As @OmarAI2003 has verified that download_splits parameter already exists in method get_task(), and defaults to false.
   So should the issue be closed or is there any other task to be done under this issue.
   Please calarify that so we can work on it.

   👍React with 👍1Reacted by Pieter Gijsbers
6. PGijsbers commented on Oct 5, 2026

   

   PGijsbers

   on Oct 5, 2026

   Collaborator

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   Yep, thanks for catching this!

   👍React with 👍1Reacted by Apex_Levo
7. PGijsbers

   closed this as completedon Oct 5, 2026