Create mime message

from email.message import Message
from email.generator import Generator
from email import generator
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
import os

class MimeMessage():
    def __init__(self,fromEmail,to,cc="",subject="",body="",format='text'):
        self.msg = msg = MIMEMultipart()
        msg['From'] = fromEmail
        msg['To'] =  to
        msg['Cc'] = cc
        msg['Subject'] = subject
        msg1 = MIMEText(body,format)
        self.msg.attach(msg1)
    def add_attachment(self,filename, text):
        part = MIMEText(text)
        part.add_header('Content-Disposition', 'attachment', filename=filename)
        self.msg.attach(part)
    def add_file(self,filename):
        part = MIMEBase('application','octet-stream')
        with open(filename, 'rb') as file:
            part.set_payload(file.read())
        encoders.encode_base64(part)
        part.add_header('Content-Disposition',
                        'attachment; filename="{}"'.format(os.path.basename(filename)))
        self.msg.attach(part)
    def to_string(self):
        return self.msg.as_string()
    def save(self, filename):
        file = open(filename,'w')
        g= Generator(file)
        g.flatten(self.msg)
        file.close()