openml / openml/OpenML

attributes with values containing special characters (dataset upload via python API)

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Description

I uploaded a dataset (https://www.openml.org/d/42685) using the python API, but it apparently never leaves the "in preparation" status. The reason seems to be the column "city" which has values with special characters (accents), e.g. "São Paulo".

Then I created a version of this dataset by replacing such special characters and this problem was gone. I am not sure if there is a plan to allow such special characters in the data, but it could be very helpful (I could not find if there was another related issue posted at GitHub).

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Research direction

Start by reproducing the dataset upload through the Python API using the cited dataset and accented values such as “São Paulo.” Trace why the upload remains “in preparation”; done means datasets containing these characters complete processing successfully, with a regression test covering the case.

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Assessment

Tech stack
python
Domain
data, machine-learning
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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