python for循环得到的不是词组而是字母

Question

各位大虾好！小虾最近遇到一个很奇葩的问题。

我有一个文件，假设叫list.txt，内容如下：

[root@zabbix opt]# cat list.txt 
1000 lebron_james
9999 kevin_durant
3232 chris_paul
878 james_harden

现在我想得到如下的输出：
[e-mail]
[e-mail]
[e-mail]
[e-mail]

既然每一个后面都加上@qq.com，于是我就使用for循环来搞呗，我的脚本如下：

#!/usr/bin/env python
import os
import commands

name = commands.getoutput("cat list.txt|awk '{print $2}'")
for i in name:
       a = i + '@qq.com'
       print a

结果执行出来的结果是：
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]

@qq.com
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
（下略）

为什么会这样？请问应该如何修改？

Answer 1

with open('list.txt','r') as f:
    f=f.readlines()
for i in f:
    print('{user}@qq.com'.format(user=i.split(' ')[1].strip()))

Answer 2

awk '{print $2"@qq.com"}' list.txt

Answer 3

name = commands.getoutput("cat list.txt|awk '{print $2}'")
返回的是字符串，对它for循环当然是一个个字母拿出来啦。
把name = commands.getoutput("cat list.txt|awk '{print $2}'")后面加上splitlines()就好啦

即name = commands.getoutput("cat list.txt|awk '{print $2}'").splitlines()

这时name的值就是 ["lebron_james","kevin_durant", ...],再for循环就对了