python3 email发送邮件带附件

邮箱发送邮件带附件格式，使用方法。

1.能够选择是否增长附加，若是不须要附件，只须要将附件的传参值为空便可。

2.邮件抄送功能鸡肋，若是想用抄送功能，把To和Cc合并所有发送。

3.能够把须要长改变参数取出，如email地址。

# !/usr/bin/env python
# -*- coding: utf-8 -*-
import smtplib
import email.mime.multipart
import email.mime.text
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
import email
import base64

class send_mail:
    def __init__(self, From, To,Cc, pw, file_path, file_header, file_body):
        # 发送人
        self.From = From
        # 收件人['aaa@a.com','bbb@a.com']
        self.To = list(To)
        #抄送人
        self.Cc = list(Cc)
        # 登陆邮件密码base64.encodestring('明文')加密后密码
        self.pw = pw
        # 文件具体路径(路径+文件名称)
        self.file_path = file_path
        # 标题头
        self.file_header = file_header
        # 内容
        self.file_body = file_body

    def login(self):
        server = smtplib.SMTP('邮箱域名 or ip')
        server.starttls()
        # pwd = base64.decodestring(self.pw)
        server.login(self.From, self.pw)
        try:
            receive = self.To
            #receive.extend(self.Cc)
            server.sendmail(self.From,self.To,self.atta())
        finally:
            server.quit()

    def atta(self):
        main_msg = MIMEMultipart()
        # 内容
        text_msg = MIMEText(self.file_body)
        main_msg.attach(text_msg)
        try:
            contype = 'application/octet-stream'
            maintype, subtype = contype.split('/', 1)

            data = open(self.file_path, 'rb')
            file_msg = MIMEBase(maintype, subtype)
            file_msg.set_payload(data.read())
            data.close()
            email.encoders.encode_base64(file_msg)
            basename = os.path.basename(self.file_path.split('/')[-1])
            file_msg.add_header('Content-Disposition', 'attachment', filename=basename)
            main_msg.attach(file_msg)
        except Exception as e:
            pass

        main_msg['From'] = self.From
        main_msg['To'] = ";".join(self.To)
        main_msg['Cc'] = ";".join(self.Cc)

        # 标题头
        main_msg['Subject'] = self.file_header
        main_msg['Date'] = email.utils.formatdate()

        fullText = main_msg.as_string()

        return fullText


if __name__ == '__main__':
    s = send_mail('发送邮箱', ['收件人邮箱'],['邮箱], '邮箱密码', '附件具体位置', '主题', '内容')
    s.login()
    print('发送成功！')