#Author:qcg
import getpass

info = open('/home/me/python-study/20170913/info.txt','r')   #导入用户名密码

Blanklist=open('/home/me/python-study/20170913/blanklist.csv','r+')

#username = input("please input username:")

#passwd = input("please input your passqord:")

#创建用户名密码字典

for line in info:

    user_list=line.split(',')

i=0

dic_usr={}

while i<len(user_list)/2 -1:

    dic_usr[user_list[(2*i)]]=user_list[(2*i+1)]

    i+=1

#print (dic_usr)

username = input("please input username:")

for line in Blanklist:

#    print (line)

    if username in line:

        print("sorry,you are forbidden to logn in")

    break

count = 0

while count<3:

    #passwd = input("please input your password:")
　　 passwd = getpass.getpass("please input your password:")

    if username in dic_usr and dic_usr[username]==passwd:    #判断用户名是否在黑名单中，若不在则匹配用户名密码~

        print("welcome to logn in")

        break

    else:

        print("please try  again~~~")

    count+=1

else:

    print ("you have try too manay times,byebye")

    Blanklist.write(username)

    Blanklist.write(',')

Blanklist.close()

info.close()