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要想实现一个能够发送带有文本、图片、附件的python程序,首先要熟悉两大模块:
email以及smtplib
然后对于MIME(邮件扩展)要有一定认知,因为有了扩展才能发送附件以及图片这些媒体或者非文本信息
最后一个比较细节的方法就是MIMEMultipart,要理解其用法以及对应参数所实现的功能区别
发送邮件三部曲:
创建协议对象
连接邮件服务器
登陆并发送邮件
from email.header import Header from email.mime.base import MIMEBase from email.mime.text import MIMEText import mimetypes from email.mime.multipart import MIMEMultipart import os import smtplib from email import Encoders as email_encoders class Message(object): def __init__(self, from_addr, to_addr, subject="", html="", text=None, cc_addr=[], attachment=[]): self.from_addr = from_addr self.subject = subject if to_addr: if isinstance(to_addr, list): self.to_addr = to_addr else: self.to_addr = [d for d in to_addr.split(',')] else: self.to_addr = [] if cc_addr: if isinstance(cc_addr, list): self.cc_addr = cc_addr else: self.cc_addr = [d for d in cc_addr.split(',')] else: self.cc_addr = [] if html is not None: self.body = html self.body_type = "html" else: self.body = text self.body_type = "plain" self.parts = [] if isinstance(attachment, list): for file in attachment: self.add_attachment(file) def add_attachment(self, file_path, mimetype=None): """ If *mimetype* is not specified an attempt to guess it is made. If nothing is guessed then `application/octet-stream` is used. """ if not mimetype: mimetype, _ = mimetypes.guess_type(file_path) if mimetype is None: mimetype = 'application/octet-stream' type_maj, type_min = mimetype.split('/') with open(file_path, 'rb') as fh: part_data = fh.read() part = MIMEBase(type_maj, type_min) part.set_payload(part_data) email_encoders.encode_base64(part) part_filename = os.path.basename(file_path) part.add_header('Content-Disposition', 'attachment; filename="%s"' % part_filename) part.add_header('Content-ID', part_filename) self.parts.append(part) def __to_mime_message(self): """Returns the message as :py:class:`email.mime.multipart.MIMEMultipart`.""" ## To get the message work in iOS, you need use multipart/related, not the multipart/alternative msg = MIMEMultipart('related') msg['Subject'] = self.subject msg['From'] = self.from_addr msg['To'] = ','.join(self.to_addr) if len(self.cc_addr) > 0: msg['CC'] = ','.join(self.cc_addr) body = MIMEText(self.body, self.body_type) msg.attach(body) # Add Attachment for part in self.parts: msg.attach(part) return msg def send(self, smtp_server='localhost'): smtp = smtplib.SMTP() smtp.connect(smtp_server) smtp.sendmail(from_addr=self.from_addr, to_addrs=self.to_addr + self.cc_addr, msg=self.__to_mime_message().as_string()) smtp.close()
对于实际发送程序,要注意个参数的类型,比如from_addr是字符串,to_addr和cc_addr以及attachment都是列表
from mail_base import Message import datetime from_addr = 'xxx' mail_to = 'xxx' def send_go(): time_now = datetime.datetime.now().strftime('%Y-%m-%d %H:%M') attach_files = ['testcsv.xlsm','test1.jpg','test2.jpg','test3.jpg'] mail_msg = """ <p>Hi Lockey:</p> <p><img src="/UploadFiles/2021-04-08/cid:test1.jpg">对于测试程序我们命名为sendGo.py,运行测试程序
~$ python sendGo.py以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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