



from __future__ import annotations

def      __lowercase(						UpperCAmelCase__			):


      """simple docstring"""



      if not nums:
            raise ValueError("List is empty"			)
      return sum(UpperCAmelCase__			) / len(UpperCAmelCase__			)


if __name__ == "__main__":
     import doctest

     doctest.testmod()




import socket

def      __lowercase(						):


      """simple docstring"""



      lowerCamelCase             =		socket.socket(socket.AF_INET , socket.SOCK_STREAM			)
      lowerCamelCase             =		socket.gethostname()
      lowerCamelCase             =		12312

      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:
                  lowerCamelCase             =		sock.recv(1024			)
                  if not data:
                        break
                  out_file.write(UpperCAmelCase__			)

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


if __name__ == "__main__":
     main()