pySerial - norio515@Wiki

pySerial provides a access to serial port using python. It works in malti-platform such as Windows, Linux, Mac OS X and so on without converting source code.
The module supporting write and read apis is following;

serial_port_controller.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
 
"""
serial_port_controller.py
AProjectName
 
Created by Norio Saito on 7/2/11.
Copyright 2011 Tokyo Institute of Technology. All rights reserved.
"""
 
import sys
import serial
 
class SerialPortController(object):
    """
    Encapsulate the settings and handles of the serial port.
    It provides simple APIs with read and write.
    """
    port = None
 
    def __init__(self, port_name):
        """ Open a serial connection using port_name. """
        #self.port = serial.Serial(port_name)
        self.port = mockups.Serial(port_name)
        if not self.port.isOpen():
            print "Port name: %s is invalid." % (port_name)
            sys.exit()
 
    def close(self):
        """ Return the result of closing a serial connection. """
        if not self.port:
            print "The serial connection is not opened. "
            return False
 
        if self.port.isOpen():
            self.port.close()
            return True
 
        return False
 
    def write_command(self, command):
        """ Write comamnd to equipment. """
        self.port.write(command)
 
    def read_buffer(self, size):
        """ Read the buffer of equipment until a size. """
        return self.port.read(size)
 
if __name__ == "__main__":
    port_controller = SerialPortController("COM1")
    port_controller.write_command("This is command.")
    port_controller.read_buffer(11)
    port_controller.close()