GridSearchCV работает без сбоев при скоринге='accuracy', но не при скоринге=accuracy_score ⇐ Python

[Anonymous]

Когда я запускаю следующий фрагмент кода в блокноте Jupyter внутри Visual Studio Code, он работает без проблем.
from sklearn.datasets import load_iris
from sklearn.neighbors import KNeighborsClassifier
from sklearn.metrics import accuracy_score
from sklearn.model_selection import GridSearchCV

X, y = load_iris(return_X_y=True, as_frame=True)

gs = GridSearchCV(estimator=KNeighborsClassifier(),
param_grid=[{'n_neighbors': [3]}],
scoring='accuracy')
# scoring=accuracy_score)

gs.fit(X, y)

Однако, если я раскомментирую закомментированную строку, закомментирую строку над ней и перезапущу блокнот, я получу следующую ошибку. Почему?
c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py:982: UserWarning: Scoring failed. The score on this train-test partition for these parameters will be set to nan. Details:
Traceback (most recent call last):
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py", line 971, in _score
scores = scorer(estimator, X_test, y_test, **score_params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\utils\_param_validation.py", line 191, in wrapper
params = func_sig.bind(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3267, in bind
return self._bind(args, kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3191, in _bind
raise TypeError(
TypeError: too many positional arguments

warnings.warn(
c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py:982: UserWarning: Scoring failed. The score on this train-test partition for these parameters will be set to nan. Details:
Traceback (most recent call last):
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py", line 971, in _score
scores = scorer(estimator, X_test, y_test, **score_params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\utils\_param_validation.py", line 191, in wrapper
params = func_sig.bind(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3267, in bind
return self._bind(args, kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3191, in _bind
raise TypeError(
TypeError: too many positional arguments

warnings.warn(
c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py:982: UserWarning: Scoring failed. The score on this train-test partition for these parameters will be set to nan. Details:
Traceback (most recent call last):
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py", line 971, in _score
scores = scorer(estimator, X_test, y_test, **score_params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\utils\_param_validation.py", line 191, in wrapper
params = func_sig.bind(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3267, in bind
return self._bind(args, kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3191, in _bind
raise TypeError(
TypeError: too many positional arguments

warnings.warn(
c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py:982: UserWarning: Scoring failed. The score on this train-test partition for these parameters will be set to nan. Details:
Traceback (most recent call last):
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py", line 971, in _score
scores = scorer(estimator, X_test, y_test, **score_params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\utils\_param_validation.py", line 191, in wrapper
params = func_sig.bind(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3267, in bind
return self._bind(args, kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3191, in _bind
raise TypeError(
TypeError: too many positional arguments

warnings.warn(
c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py:982: UserWarning: Scoring failed. The score on this train-test partition for these parameters will be set to nan. Details:
Traceback (most recent call last):
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_validation.py", line 971, in _score
scores = scorer(estimator, X_test, y_test, **score_params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\utils\_param_validation.py", line 191, in wrapper
params = func_sig.bind(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3267, in bind
return self._bind(args, kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\isc\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 3191, in _bind
raise TypeError(
TypeError: too many positional arguments

warnings.warn(
c:\Users\isc\Documents\Python\MLClassification\.venv\Lib\site-packages\sklearn\model_selection\_search.py UserWarning: One or more of the test scores are non-finite: [nan]
warnings.warn(


Подробнее здесь: https://stackoverflow.com/questions/786 ... ng-accurac