python script for reading from windows serial

py.py

#/usr/bin/env python

import serial

#variables
port='COM2';
baudrate='9600';
bytesize=serial.EIGHTBITS; #EIGHT BITS
parity=serial.PARITY_NONE; # ODD
stopbits=serial.STOPBITS_ONE; # 2 STOP BITS
filename = 'serial.dump';

serialPort = serial.Serial(port, baudrate, bytesize, parity, stopbits); #should be open
serialPort.open();

def readloop(bytebuffer):
	while True:
		cc = serialPort.read()
		bytebuffer.extend(cc);
		if cc.encode('hex') == '\03'.encode('hex'): #end of text
			dumpresults(bytebuffer)
			break;

def dumpresults(content):
	f = open(filename, 'w');
	f.write(content)
	f.close()
	bytebuffer = []
	readloop(bytebuffer)

bytebuffer = []
readloop(bytebuffer)