import socket
import numpy as np

HOST = '127.0.0.1'  # The server's hostname or IP address
PORT = 65432        # The port used by the server

data = np.random.rand(1000000)

with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
    print(f"Sent {np.prod(data.shape)} elements.")
    s.connect((HOST, PORT))
    
    print(data.ravel()[-1])

    # data length descriptor as uint32
    length_descriptor = np.uint32(np.prod(data.shape)).tobytes(order='C')
    
    # payload as C-style float32 byte array
    payload = data.astype(np.float32).tobytes(order='C')

    s.sendall(length_descriptor + payload)