Python 3x File Emailing

import smtplib
from smtplib import SMTP_SSL
import email
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
from email import encoders
import os

#filepath must be like this (from the very beginning directory): 'C://dir/dir/dir/dir/filename.jpg' or any other
#filename extension. for example .doc
filepath = 'C://Users/олег/Downloads/long_legs_by_carolelalibre-d5l5r75.jpg'
basename = os.path.basename(filepath)
address = 'sender_email'

#Compose attachment
part = MIMEBase('application', "octet-stream")
part.set_payload(open(filepath, "rb").read())
encoders.encode_base64(part) #i think this '64' stuff stands for your Win64 or 32, i dont know for sure
part.add_header('Content-Disposition', 'attachment; filename = "%s"' % basename)

#Compose message
msg = MIMEMultipart()
msg['From'] = 'sender_email'
msg['To'] = 'receiver_email'
msg.attach(part)

#Send mail
smtp = smtplib.SMTP('smtp.mail.ru', 25) #25 is the port of smtp.mail.ru
smtp.ehlo()
smtp.starttls()

smtp.login(address, "sender's_email_password")
smtp.sendmail(address, address, msg.as_string())
print('Executed')
smtp.quit()