python으로 email 보내기 via gmail

• 여기에 아주 잘 정리 되어 있다. 굳이 또 정리할 필요가 없지만, 그래도 짧게 코드 정리 해 본다.
  • link : https://s-engineer.tistory.com/234
  • python tutorial link : https://docs.python.org/ko/3/library/smtplib.html
• Step
  1. 중요한 건 Gmail Setting에서 IMAP을 켜고,
  2. Google Account로 가서 보안 탭 > Google에 로그인 > 앱 비밀번호를 선택하고,
  3. 메일 > Windows 컴퓨터 선택, 생성 버튼 누름.
  4. 생성 된 비밀번호(16자리)를 python code에서 비밀번호 대신에 넣은 것.
• code

import smtplib, ssl
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

SMTP_URL = "smtp.gmail.com"
SMTP_PORT = 465

class EMail(object):
  sender_email = "fnwinter@gmail.com"
  receiver_email = "fnwinter@gmail.com"
  password = "" # google app password
  title = ""
  text = ""
  html = ""

  def __init__(self, receiver = None):
    self.message = MIMEMultipart("alternative")
    self.message["Subject"] = self.title
    self.message["From"] = self.sender_email
    self.message["To"] = self.receiver_email
    if receiver:
      self.receiver_email = receiver

  def set_title(self, title):
    self.title = title

  def set_text(self, text):
    self.text = text

  def set_html(self, html):
    self.html = html

  def send_mail(self):
    part1, part2 = None, None
    if self.text:
      part1 = MIMEText(self.text, "plain")
      self.message.attach(part1)
    if self.html:
      part2 = MIMEText(self.html, "html")
      self.message.attach(part2)

    context = ssl.create_default_context()
    with smtplib.SMTP_SSL(SMTP_URL, SMTP_PORT, context=context) as server:
        server.login(self.sender_email, self.password)
        server.sendmail(
            self.sender_email, self.receiver_email, self.message.as_string()
        )
        server.quit()

다른 코드

import smtplib
from os.path import basename
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import COMMASPACE, formatdate

GOOGLE_ID = "****@gmail.com"
GOOGLE_PASSWORD = "password"

def send_mail(send_from, send_to, subject, text, files=None,
              server="127.0.0.1"):
    assert isinstance(send_to, list)

    msg = MIMEMultipart()
    msg['From'] = send_from
    msg['To'] = COMMASPACE.join(send_to)
    msg['Date'] = formatdate(localtime=True)
    msg['Subject'] = subject

    msg.attach(MIMEText(text))

    for f in files or []:
        with open(f, "rb") as fil:
            part = MIMEApplication(
                fil.read(),
                Name=basename(f)
            )
        # After the file is closed
        part['Content-Disposition'] = 'attachment; filename="%s"' % basename(f)
        msg.attach(part)

    smtp = smtplib.SMTP(server)
    smtp.login(GOOGLE_ID, GOOGLE_PASSWORD)
    smtp.sendmail(send_from, send_to, msg.as_string())
    smtp.close()


if __name__ == "__main__":
    send_mail("****@gmail.com", ["****@gmail.com"], \
              "subject", "body", ["test.txt"], "smtp.gmail.com")