[BUG] Empty result error from wikidata query

[SimonYansenZhao]

Description

The error is from running the tests in tests/data_validation/examples/test_wikidata.py::test_wikidata_runs and tests/data_validation/examples/test_wikidata.py::test_wikidata_values which run the notebook examples/01_prepare_data/wikidata_knowledge_graph.ipynb. When results_list is empty, we will get the error.

And the same issue occurs in the following code as well when result is empty.

In which platform does it happen?

How do we replicate the issue?

Create a GitHub Codespace, and run the notebook examples/01_prepare_data/wikidata_knowledge_graph.ipynb multiple times until results_list is empty.

Or run it locally by the following steps:

1. Setup

   cd recommenders
   conda create -n reco python=3.11
   conda activate reco
   pip install .[dev]
   

2. Run the examples/01_prepare_data/wikidata_knowledge_graph.ipynb in VS Code multiple times until results_list is empty.

Expected behavior (i.e. solution)

results_list and result in the notebook examples/01_prepare_data/wikidata_knowledge_graph.ipynb should not be empty.

Willingness to contribute

• Yes, I can contribute for this issue independently.
• Yes, I can contribute for this issue with guidance from Recommenders community.
• No, I cannot contribute at this time.

Other Comments

[miguelgfierro]

related to #2210

[miguelgfierro]

@SimonYansenZhao I'm trying to improve the wikidata notebook

[miguelgfierro]

the PR would not solve the issue because it is due to a rate limit of the wikidata API, but at least we have more visibility on it. We just need to retry the test