Python - 替换字符串中的非ASCII字符(») [英] Python - Replace non-ascii character in string (»)
问题描述
我需要用一个空格替换字符串»,但我仍然收到一个错误。这是我使用的代码:
I need to replace in a string the character "»" with a whitespace, but I still get an error. This is the code I use:
# -*- coding: utf-8 -*-
from bs4 import BeautifulSoup
# other code
soup = BeautifulSoup(data, 'lxml')
mystring = soup.find('a').text.replace(' »','')
UnicodeEncodeError:'ascii' t编码字符u'\xbb'在
位置13:ordinal不在范围(128)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xbb' in position 13: ordinal not in range(128)
但是如果我用这个其他脚本测试:
But If I test it with this other script:
# -*- coding: utf-8 -*-
a = "hi »"
b = a.replace('»','')
它可以工作。为什么这样?
It works. Why this?
推荐答案
为了用 str.replace()
方法;您需要首先对字符串进行解码,然后替换文本并将其编码回原始文本:
In order to replace the content of string using str.replace()
method; you need to firstly decode the string, then replace the text and encode it back to the original text:
>>> a = "hi »"
>>> a.decode('utf-8').replace("»".decode('utf-8'), "").encode('utf-8')
'hi '
您可以使用以下正则表达式从字符串中删除所有非ASCII字符:
You may use the following regex to remove all the non-ascii characters from the string:
>>> import re
>>> re.sub(r'[^\x00-\x7f]',r'', 'hi »')
'hi '
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