为什么照着文章中的操作，显示 403 错误呢?

#!/usr/bin/env python
# encoding: utf-8
password=input('请输入密码：')
b_hold=1
b_wait=2
b_total=b_hold+b_wait
str1=['azc','dwf','gti','jql','mon','pkr','shu','vex','yb']
p_len=len(password)
p_total=p_len
time1=b_hold
while (p_len-1):
    flag=0
    for i in str1:
        if (password[p_total-p_len] in i) and (password[p_total-p_len+1] in i):
            flag=1
            break
    if flag:
        time1 += b_total
    else:
        time1+=b_hold
    p_len-=1
print(time1)