python正则表达式也匹配特殊字符

Question

currently I use this simple script to search for a tag in the string;

tag = "#tag"
text = "test string with #tag inserted"
match = re.search(tag, text, re.IGNORECASE) #matches

now suppose the text contains an a-acute;

tag = "#tag"
text = "test string with #tág inserted"
match = re.search(tag, text, re.IGNORECASE) #does not match :(

How do I make this match work? should work for other special chars too (é, è, í, etc..)

Thanks in advance!

Answer 1

you can normalize the text with unidecode :

import unicodedata

tag = "#tag"
text = u"test string with #tág inserted and a #tag"
text=unidecode(text)
re.findall(tag, text, re.IGNORECASE)

out:

['#tag', '#tag']