有時候用到這個模組的時候會報錯

AttributeError: 'CNAME' object has no attribute 'address'

如下所示

[root@ansible ch01]# ./dnspython_ex1.py
Please input a domain: www.baidu.com
Traceback (most recent call last):
  File "./dnspython_ex1.py", line 9, in <module>
    print(j.address)
AttributeError: 'CNAME' object has no attribute 'address'
 

程式碼是這樣的：

#!/usr/bin/env python
import dns.resolver

domain = raw_input('Please input a domain: ')
A = dns.resolver.query(domain, 'A')
for i in A.response.answer:
    for j in i.items:
        print j.address

我們只需在最後需要輸出address時在前面增加if判斷

if j.rdtype == 1:

將程式碼修改如下：

#!/usr/bin/env python
import dns.resolver

domain = raw_input('Please input a domain: ')
A = dns.resolver.query(domain, 'A')
for i in A.response.answer:
    for j in i.items:
        if j.rdtype == 1:
            print j.address
 

執行就不會報錯了

[root@ansible ch01]# ./dnspython_ex1.py
Please input a domain: www.baidu.com
14.215.177.38
14.215.177.39