attendance.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import nfc
import time
import random
import pprint
#import requests
import binascii
servcode = 0x110B
suica = 0x090f
previd = 0
def connected(tag):
    import __main__
    service_code = [nfc.tag.tt3.ServiceCode(servcode >> 6, servcode & 0x3f)]
    students_id = [nfc.tag.tt3.BlockCode(i) for i in range(1, 2)]
    result_id = tag.read_without_encryption(service_code, students_id)
    res_id = int(result_id[0:8])
        
    if res_id != __main__.previd:
        print "学籍番号 : "+str(res_id)
        __main__.previd = res_id
    else:
        print "すでに出席登録しています"

    clf.connect(rdwr={'on-connect': connected})

clf = nfc.ContactlessFrontend('usb:054c:06c3')
clf.connect(rdwr={'on-connect': connected})