Traceback (most recent call last):


 "/usr/local/bin/oj", line 6, in <module>

from onlinejudge._implementation.main import main
ModuleNotFoundError: No module named 'onlinejudge._implementation.main'

Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "/scikit-learn/sklearn/cluster/__init__.py", line 6, in <module>

from ._spectral import spectral_clustering, SpectralClustering


 "/scikit-learn/sklearn/cluster/_spectral.py", line 19, in <module>

from ._kmeans import k_means


 "/scikit-learn/sklearn/cluster/_kmeans.py", line 35, in <module>

from ._k_means_fast import CHUNK_SIZE
ModuleNotFoundError: No module named 'sklearn.cluster._k_means_fast'
