python communication with serial port

1        serialString = ""                           # Used to hold data coming over UART
2
3
4while(1):
5
6    # Wait until there is data waiting in the serial buffer
7    if(serialPort.in_waiting > 0):
8
9        # Read data out of the buffer until a carraige return / new line is found
10        serialString = serialPort.readline()
11
12        # Print the contents of the serial data
13        print(serialString.decode('Ascii'))
14
15        # Tell the device connected over the serial port that we recevied the data!
16        # The b at the beginning is used to indicate bytes!
17        serialPort.write(b"Thank you for sending data \r\n")
18