import re EMAIL_REGEX = re.compile( r"(?:^|(?<=[^\w@.)]))([\w+-](\.(?!\.))?)*?[\w+-](@|[(<{\[]at[)>}\]])(?:(?:[a-z\\u00a1-\\uffff0-9]-?)*[a-z\\u00a1-\\uffff0-9]+)(?:\.(?:[a-z\\u00a1-\\uffff0-9]-?)*[a-z\\u00a1-\\uffff0-9]+)*(?:\.(?:[a-z\\u00a1-\\uffff]{2,}))", flags=re.IGNORECASE | re.UNICODE, )