>>> s = [u‘127.0.0.1‘, 33428]
>>> s
[u‘127.0.0.1‘, 33428]
>>> type(s)
<type ‘list‘>

>>> tos = str(s)
>>> tos
"[u‘127.0.0.1‘, 33428]"
>>> for i in tos:
...     print i
... 
[
u
‘
1
2
7
.
0
.
0
.
1
‘
,
 
3
3
4
2
8
]
>>> l = list("[u‘127.0.0.1‘, 33428]")
>>> l
[‘[‘, ‘u‘, "‘", ‘1‘, ‘2‘, ‘7‘, ‘.‘, ‘0‘, ‘.‘, ‘0‘, ‘.‘, ‘1‘, "‘", ‘,‘, ‘ ‘, ‘3‘, ‘3‘, ‘4‘, ‘2‘, ‘8‘, ‘]‘]