Serial Communication between Python and Arduino

1import serial
2import time
3
4arduino = serial.Serial(port='COM4',   baudrate=115200, timeout=.1)
5
6
7def write_read(x):
8    arduino.write(bytes(x,   'utf-8'))
9    time.sleep(0.05)
10    data = arduino.readline()
11    return   data
12
13
14while True:
15    num = input("Enter a number: ")
16    value   = write_read(num)
17    print(value)
18

1import serial
2import time
3
4arduino = serial.Serial(port='COM4',  baudrate=115200, timeout=.1)
5
6
7def write_read(x):
8    arduino.write(bytes(x,  'utf-8'))
9    time.sleep(0.05)
10    data = arduino.readline()
11    return  data
12
13
14while True:
15    num = input("Enter a number: ")
16    value  = write_read(num)
17    print(value)
18

1int x;
2
3void setup() {
4  Serial.begin(115200);
5  Serial.setTimeout(1);
6}
7
8void  loop() {
9  while (!Serial.available());
10  x = Serial.readString().toInt();
11  Serial.print(x + 1);
12}