
import socket







def 						_snake_case(  )			->   List[Any]:
       lowercase							:					Optional[Any]	     =				socket.socket(socket.AF_INET ,     socket.SOCK_STREAM    )
       lowercase							:					Any	     =				socket.gethostname()
       lowercase							:					List[Any]	     =				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:
                     lowercase							:					Dict	     =				sock.recv(1_024    )
                     if not data:
                            break
                     out_file.write(SCREAMING_SNAKE_CASE__    )

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


if __name__ == "__main__":
  main()


from __future__ import annotations

import numpy as np







def 						_snake_case(  SCREAMING_SNAKE_CASE__    )			->   tuple[np.ndarray, np.ndarray]:
       lowercase     ,      lowercase							:					Dict	     =				np.shape(SCREAMING_SNAKE_CASE__    )
       if rows != columns:
              lowercase							:					str	     =				(
                  """'table' has to be of square shaped array but got a """
                  f"{rows}x{columns} array:\n{table}"
              )
              raise ValueError(SCREAMING_SNAKE_CASE__    )

       lowercase							:					Any	     =				np.zeros((rows, columns)    )
       lowercase							:					int	     =				np.zeros((rows, columns)    )
       for i in range(SCREAMING_SNAKE_CASE__    ):
              for j in range(SCREAMING_SNAKE_CASE__    ):
                     lowercase							:					Optional[int]	     =				sum(lower[i][k] * upper[k][j] for k in range(SCREAMING_SNAKE_CASE__    )    )
                     if upper[j][j] == 0:
                            raise ArithmeticError("""No LU decomposition exists"""    )
                     lowercase							:					str	     =				(table[i][j] - total) / upper[j][j]
              lowercase							:					Optional[Any]	     =				1
              for j in range(SCREAMING_SNAKE_CASE__ ,     SCREAMING_SNAKE_CASE__    ):
                     lowercase							:					Any	     =				sum(lower[i][k] * upper[k][j] for k in range(SCREAMING_SNAKE_CASE__    )    )
                     lowercase							:					Tuple	     =				table[i][j] - total
       return lower, upper


if __name__ == "__main__":
  import doctest

  doctest.testmod()
