# coding=utf-8
import smtplib
import csv
from email.mime.text import MIMEText

# Prepare a template as mail body.
def get_template():
    with open("Mail\\Text\\Template\\Path", "r", encoding="utf-8") as template_txt:
        template = template_txt.read()
        return template


def send_gmail(name, email):
    gmail_user = 'you@gmail.com'
    gmail_password = 'pwd'
    mail_server = 'smtp.gmail.com'

    sender = gmail_user
    receiver = email
    subject = 'I am subject!'

    template = get_template()

    body = template.format(name)
    ## template: ##
    # Hi {},
    # This is your mail.

    msg = MIMEText(body.encode('utf-8'), _charset='utf-8')  # Use utf-8 instead ascii.
    msg['Subject'] = subject
    msg['From'] = sender
    msg['To'] = receiver

    s = smtplib.SMTP_SSL(mail_server, 465)
    s.ehlo()
    s.login(gmail_user, gmail_password)
    s.sendmail(sender, receiver, msg.as_string())
    s.close()


with open('ContactFile\\receivers.csv', newline='', encoding="utf-8") as f:
    ## receivers.csv:
    # Alice,alice@gmail.com
    # Bob,bob@gmail.com
    reader = csv.reader(f)
    for row in reader:
        print(row)
        send_gmail(*row) # What are in *row depends on your function. In this case, *row is [name, email].