1
>>>
from
__future__
import
division
2
>>>
import
string
3
>>>
text_chars
=
""
.join(map(chr, range(
32
,
127
)))
+
"
\n\r\b\b
"
4
>>>
_null_trans
=
string.maketrans(
''
,
''
)
5
>>>
def
istext(s, text_chars
=
text_chars, threshold
=
0.30
):
6
if
"
\0
"
in
s:
7
return
False
8
if
not
s:
9
return
True
10
t
=
s.translate(_null_trans, text_chars)
11
return
len(t)
/
len(s)
<=
threshold
12
13
>>>
istext(
'
adcdp
'
)
14
True
15
>>>
istext(
""
)
16
True
转载于:https://www.cnblogs.com/zhtf2014/archive/2010/12/23/1915279.html
相关资源：垃圾分类数据集及代码
