Closed issue by rivanfebrian123 on void-packages repository

https://github.com/void-linux/void-packages/issues/31976

Description:
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### System

* xuname:  `Void 5.12.14_1 x86_64-musl GenuineIntel notuptodate rrFFFF`
* package:  `python3-scikit-learn-0.23.2_1`

### Expected behavior
Include `threadpoolctl` by default

### Actual behavior
```
>>> from sklearn.cluster import KMeans
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.9/site-packages/sklearn/cluster/__init__.py", line 6, in <module>
    from ._spectral import spectral_clustering, SpectralClustering
  File "/usr/lib/python3.9/site-packages/sklearn/cluster/_spectral.py", line 18, in <module>
    from ._kmeans import k_means
  File "/usr/lib/python3.9/site-packages/sklearn/cluster/_kmeans.py", line 18, in <module>
    from threadpoolctl import threadpool_limits
ModuleNotFoundError: No module named 'threadpoolctl'
```

### Steps to reproduce the behavior
- Install `python3-scikit-learn`
- Run `python3`
- Type `from sklearn.cluster import KMeans`