在Python中检测具有非英文字符的字符串 [英] Detect strings with non English characters in Python
问题描述
我有一些混合使用英语和没有英语字母的字符串.例如:
I have some strings that have a mix of English and none English letters. For example:
w='_1991_اف_جي2'
如何使用Regex或Python中的其他任何快速方法来识别这些类型的字符串?
How can I recognize these types of string using Regex or any other fast method in Python?
我不希望将字符串中的字母与字母列表一一比较,而要一枪又快地完成.
I prefer not to compare letters of the string one by one with a list of letters, but to do this in one shot and quickly.
推荐答案
您只需检查字符串是否只能使用ASCII字符(拉丁字母+其他字符)进行编码.如果无法编码,则说明它具有其他字母的字符.
You can just check whether the string can be encoded only with ASCII characters (which are Latin alphabet + some other characters). If it can not be encoded, then it has the characters from some other alphabet.
请注意注释# -*- coding: ....
.它应该在python文件的顶部(否则您会收到一些关于编码的错误)
Note the comment # -*- coding: ....
. It should be there at the top of the python file (otherwise you would receive some error about encoding)
# -*- coding: utf-8 -*-
def isEnglish(s):
try:
s.encode(encoding='utf-8').decode('ascii')
except UnicodeDecodeError:
return False
else:
return True
assert not isEnglish('slabiky, ale liší se podle významu')
assert isEnglish('English')
assert not isEnglish('ގެ ފުރަތަމަ ދެ އަކުރު ކަ')
assert not isEnglish('how about this one : 通 asfަ')
assert isEnglish('?fd4))45s&')
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