import redef is_valid_email(addr): re_mail = re.compile(r'^(\w+)((\.\w+)?)@(\w+)(.com)$') if re_mail.match(addr): return True else: return Falseassert is_valid_email('someone@gmail.com')assert is_valid_email('bill.gates@miscrosoft.com')assert not is_valid_email('bob#examole.com')assert not is_valid_email('mr-bob@exceple.com')print('ok')
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