python读取串口信息

python读取配置文件中串口的名称，然后打开串口接受读卡器信息，再提交到某个网页上。

reader.ini：
[Default]
port=/dev/ttyUSB0

serial-test.py:

#!/usr/bin/python
import serial
import urllib2
import ConfigParser

def hexShow(argv):
    result = ''
    hLen = len(argv)
    for i in xrange(hLen):
        hvol = ord(argv[i])
        hhex = '%02x'%hvol
        result += hhex
#    print 'hexShow:',result
    return result

config = ConfigParser.ConfigParser()
config.readfp(open('reader.ini'))

sPort = config.get("Default","port")

ser = serial.Serial(sPort,9600)
while ser.isOpen():
    sdata = ser.read(5)
    cardid = hexShow(sdata)
#    print cardid
    cidurl = "http://127.0.0.1/cid.php?cid="+cardid

    res_data = urllib2.urlopen(cidurl)
    res = res_data.read()
    print res