Python 正则表达式提取电子邮件地址用户名

import re

sample_str = 'The advancements in biomarine studies franky@google.com, with the investments necessary and Davos sinatra123@yahoo.com Then The New Yorker article on wind farms...'

regex = r'(\w+)@'

emails = re.findall(regex, sample_str)

print(emails)