
import socket






def 			a_						(			)					->    Any:
			_snake_case            =     socket.socket(socket.AF_INET			,   socket.SOCK_STREAM					)
			_snake_case            =     socket.gethostname()
			_snake_case            =     12_312

			sock.connect((host, port)					)
			sock.send(b'Hello server!'					)

			with open('Received_file'			,   'wb'					) as out_file:
						print('File opened'					)
						print('Receiving data...'					)
						while True:
									_snake_case            =     sock.recv(1_024					)
									if not data:
												break
									out_file.write(lowerCAmelCase__					)

			print('Successfully received the file'					)
			sock.close()
			print('Connection closed'					)


if __name__ == "__main__":
			main()






"""simple docstring"""






from sklearn.metrics import matthews_corrcoef

import datasets


__UpperCAmelCase						=			'''
Compute the Matthews correlation coefficient (MCC)

The Matthews correlation coefficient is used in machine learning as a
measure of the quality of binary and multiclass classifications. It takes
into account true and false positives and negatives and is generally
regarded as a balanced measure which can be used even if the classes are of
very different sizes. The MCC is in essence a correlation coefficient value
between -1 and +1. A coefficient of +1 represents a perfect prediction, 0
an average random prediction and -1 an inverse prediction.  The statistic
is also known as the phi coefficient. [source: Wikipedia]
'''

__UpperCAmelCase						=			'''
Args:
    predictions (list of int): Predicted labels, as returned by a model.
    references (list of int): Ground truth labels.
    sample_weight (list of int, float, or bool): Sample weights. Defaults to `None`.
Returns:
    matthews_correlation (dict containing float): Matthews correlation.
Examples:
    Example 1, a basic example with only predictions and references as inputs:
        >>> matthews_metric = datasets.load_metric("matthews_correlation")
        >>> results = matthews_metric.compute(references=[1, 3, 2, 0, 3, 2],
        ...                                     predictions=[1, 2, 2, 0, 3, 3])
        >>> print(round(results[\'matthews_correlation\'], 2))
        0.54

    Example 2, the same example as above, but also including sample weights:
        >>> matthews_metric = datasets.load_metric("matthews_correlation")
        >>> results = matthews_metric.compute(references=[1, 3, 2, 0, 3, 2],
        ...                                     predictions=[1, 2, 2, 0, 3, 3],
        ...                                     sample_weight=[0.5, 3, 1, 1, 1, 2])
        >>> print(round(results[\'matthews_correlation\'], 2))
        0.1

    Example 3, the same example as above, but with sample weights that cause a negative correlation:
        >>> matthews_metric = datasets.load_metric("matthews_correlation")
        >>> results = matthews_metric.compute(references=[1, 3, 2, 0, 3, 2],
        ...                                     predictions=[1, 2, 2, 0, 3, 3],
        ...                                     sample_weight=[0.5, 1, 0, 0, 0, 1])
        >>> print(round(results[\'matthews_correlation\'], 2))
        -0.25
'''

__UpperCAmelCase						=			'''\
@article{scikit-learn,
  title={Scikit-learn: Machine Learning in {P}ython},
  author={Pedregosa, F. and Varoquaux, G. and Gramfort, A. and Michel, V.
         and Thirion, B. and Grisel, O. and Blondel, M. and Prettenhofer, P.
         and Weiss, R. and Dubourg, V. and Vanderplas, J. and Passos, A. and
         Cournapeau, D. and Brucher, M. and Perrot, M. and Duchesnay, E.},
  journal={Journal of Machine Learning Research},
  volume={12},
  pages={2825--2830},
  year={2011}
}
'''



@datasets.utils.file_utils.add_start_docstrings(_DESCRIPTION						,  _KWARGS_DESCRIPTION  )
class 					__UpperCAmelCase							(						datasets.Metric  ):
				def       UpperCAmelCase      (		self    :			Optional[int]    )	->	str:



							'''simple docstring'''



							return datasets.MetricInfo(
							    description=_DESCRIPTION	, citation=_CITATION	, inputs_description=_KWARGS_DESCRIPTION	, features=datasets.Features(
							        {
							            "predictions": datasets.Value("int32"    ),
							            "references": datasets.Value("int32"    ),
							        }    )	, reference_urls=[
							        "https://scikit-learn.org/stable/modules/generated/sklearn.metrics.matthews_corrcoef.html"
							    ]	, )






				def       UpperCAmelCase      (		self    :			Tuple	, a_    :			Optional[Any]	, a_    :			Optional[Any]	, a_    :			Any=None    )	->	Union[str, Any]:



							'''simple docstring'''



							return {
							    "matthews_correlation": float(matthews_corrcoef(a_	, a_	, sample_weight=a_    )    ),
							}