server master.py

import socket
import numpy as np
import encodings
import Adafruit_DHT


HOST = '192.168.1.4'  # Standard loopback interface address (localhost)
PORT = 65432        # Port to listen on (non-privileged ports are > 1023)


def random_data():
    pin = 4
    sensor = Adafruit_DHT.DHT11
    humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)

    if humidity is not None and temperature is not None:
        print('Temp={0:0.1f}*C  Humidity={1:0.1f}%'.format(temperature, humidity))
        print("data was written on database T{} H{}".format(temperature,humidity))
        data = '{},{}'.format(temperature,humidity)
        return data


def my_server():

    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
        print("Server Started waiting for client to connect ")
        s.bind((HOST, PORT))
        s.listen(5)
        conn, addr = s.accept()

        with conn:
            print('Connected by', addr)
            while True:

                data = conn.recv(1024).decode('utf-8')

                if str(data) == "Data":

                    print("Ok Sending data ")

                    my_data = random_data()

                    x_encoded_data = my_data.encode('utf-8')

                    conn.sendall(x_encoded_data)

                elif  str(data) == "Quit":
                    print("shutting down server ")
                    break

                # if not data:
                #   break
                else:
                    pass


if __name__ == '__main__':
    while 1:
        my_server()