在python中删除\\ r \\ n

Question

I need to remove \\r\\n on mylist.

print mylist
>>> [1, '\r\nabc   Fa              153             M   Wa 3\r\n']

I did

lst = [txt.replace("\r\n", "") for txt in mylist]

but I get below error

AttributeError: 'int' object has no attribute 'replace'

Answer 1

您可以使用三元表达式来跳过尝试replace不是字符串的任何内容的尝试。

lst = [txt.replace("\r\n", "") if isinstance(txt, str) else txt for txt in mylist]

Answer 2

You can just strip the data from the start and end:

l = [1, '\r\nabc   Fa              153             M   Wa 3\r\n']

print([x.strip() if isinstance(x, basestring ) else x for x in l ]) 
[1, 'abc   Fa              153             M   Wa 3']

A better solution would be to strip before you add the lines to the list if possible.

Answer 3

Your first item is an int and the second is a str . If you are going to have a mix of types, you could use str.strip() in a list comprehension to handle stripping the strings.

>>> mylist = [1, '\r\nabc   Fa              153             M   Wa 3\r\n']
>>> mylist = [i.strip() if isinstance(i, basestring) else i for i in mylist]
>>> mylist
[1, 'abc   Fa              153             M   Wa 3']