Python regex: Bad character range

问题

I have the next regular expression to find emojis on a text:

re.compile(u'([\U00002600-\U000027BF])|([\U0001F300-\U0001F64F])|([\U0001F680-\U0001F6FF])')

It is working well in Python 3 but in Python 2.7 I get this:

sre_constants.error: bad character range

How can I fix it to support both, Python 2.7 and Python 3?

回答1:

Use r'(... instead of u'(... like this:

re.compile(r'([\U00002600-\U000027BF\U0001F300-\U0001F64F\U0001F680-\U0001F6FF])')

Also note that you can specify multiple ranges inside [...]

https://regex101.com/r/WuQ3Zr/1

来源：https://stackoverflow.com/questions/44314290/python-regex-bad-character-range