python 获取邮件中的发件人From、收件人To、抄送人Cc

def print_info(msg, log, indent=0):
    if indent == 0:        
        send_email_to = []
        send_email_cc = []
        for header in ['From', 'To', 'Cc']:        
            value = msg.get(header, '')
            # 获取原始的发件人 发送给谁 抄送人
            # 解析的emailAdr为：[email protected]
            if value:
                value01 = value.split(', ')
                for item in value01:
                    emailRealName, emailAdr = parseaddr(item)
                    if header == 'From' or header == 'To':
                        send_email_to.append(emailAdr)
                    elif header == 'Cc':
                        send_email_cc.append(emailAdr)
                    else:
                        pass
            # if value:
            #     # 解析的value为："[email protected]" <[email protected]>
            #     value = decode_str(value)
            # else:
            #     hdr, addr = parseaddr(value)
            #     name = decode_str(hdr)
            #     value = u'%s <%s>' % (name, addr)
            # log.info('%s%s: %s' % (' ' * indent, header, value))        
        log.info('收件人: %s' % send_email_to)
        log.info('抄送人人: %s' % send_email_cc)
        # send_email_to:  ['[email protected]', '[email protected]', '[email protected]']