Add an attachment / body using the email module

How to add attachments to your emails in python
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Wrapping Up
Python 3.5
import os
import smtplib
import sys
from configparser import ConfigParser
from email import encoders
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
from email.utils import formatdate
#----------------------------------------------------------------------
def send_email_with_attachment(subject, body_text, to_emails,
                               cc_emails, bcc_emails, file_to_attach):
    """
    Send an email with an attachment
    """
    base_path = os.path.dirname(os.path.abspath(__file__))
    config_path = os.path.join(base_path, "email.ini")
    header = 'Content-Disposition', 'attachment; filename="%s"' % file_to_attach
    # get the config
    if os.path.exists(config_path):
        cfg = ConfigParser()
        cfg.read(config_path)
    else:
        print("Config not found! Exiting!")
        sys.exit(1)
    # extract server and from_addr from config
    host = cfg.get("smtp", "server")
    from_addr = cfg.get("smtp", "from_addr")
    # create the message
    msg = MIMEMultipart()
    msg["From"] = from_addr
    msg["Subject"] = subject
    msg["Date"] = formatdate(localtime=True)
    if body_text:
        msg.attach( MIMEText(body_text) )
    msg["To"] = ', '.join(to_emails)
    msg["cc"] = ', '.join(cc_emails)
    attachment = MIMEBase('application', "octet-stream")
    try:
        with open(file_to_attach, "rb") as fh:
            data = fh.read()
        attachment.set_payload( data )
        encoders.encode_base64(attachment)
        attachment.add_header(*header)
        msg.attach(attachment)
    except IOError:
        msg = "Error opening attachment file %s" % file_to_attach
        print(msg)
        sys.exit(1)
    emails = to_emails + cc_emails
    server = smtplib.SMTP(host)
    server.sendmail(from_addr, emails, msg.as_string())
    server.quit()
if __name__ == "__main__":
    emails = ["mike@someAddress.org", "nedry@jp.net"]
    cc_emails = ["someone@gmail.com"]
    bcc_emails = ["anonymous@circe.org"]
    subject = "Test email with attachment from Python"
    body_text = "This email contains an attachment!"
    path = "/path/to/some/file"
    send_email_with_attachment(subject, body_text, emails, 
                               cc_emails, bcc_emails, path)