How to hide email password?

import time
import requests # Will help us to get out url directed
from bs4 import BeautifulSoup # Will help us to scrap us the data

import os
import smtplib # this module is used for sending mail
from email.message import EmailMessage

email_id = os.environ.get("EMAIL_ADDR")
email_pass = os.environ.get("EMAIL_PASS")

def check_price():
    #Copy url of the product that you are looking for

[...]

while True:
    check_price()
    time.sleep(10)