Selenium how to detect if browser is close?

[gahhon]

CommonChrome.py

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
 
class ChromeDriver:
 
    def __init__(self, remote = False):
        driverOtp = webdriver.ChromeOptions()
        driverOtp.add_argument("--start-maximized")
        driverOtp.add_argument("--disable-infobars")
        driverOtp.add_argument("--ignore-certificate-errors")
        driverOtp.add_argument("--disable-extensions")
        driverOtp.add_argument("--disable-gpu")
        driverOtp.add_argument("--log-level=3")
         
        if remote is False:
            self.driver = webdriver.Chrome(options=driverOtp, executable_path=r'chromedriver.exe')
            ch.write("url", self.driver.command_executor._url)
            ch.write("session_id", self.driver.session_id)
            self.switchTab(1)
            self.close()
            self.switchTab(0)
        else:
            sID = ch.get("session_id")
            sURL = ch.get("url")
             
            self.driver = webdriver.Remote(command_executor=sURL, desired_capabilities={})
            self.driver.close()
            self.driver.quit()
            self.driver.session_id = sID
            self.newTab()
            self.switchLastTab()
             
        self.driver.implicitly_wait(30)        
        self.wait = WebDriverWait(self.driver, 30)

Yahoo.py

import CommonChrome as Chrome
import ChromeIni as CI
 
def yahoo():
    ch = CI.Ini()
     
    sID = ch.get("session_id")
    sURL = ch.get("url")
 
    if sID is "" or sURL is "":
        driver = Chrome.ChromeDriver()
    else:
        driver = Chrome.ChromeDriver(True)
 
    driver.redirect("https://www.yahoo.com")

So when the user launch the yahoo.py it will set the session_id and url to .ini file, for reconnect back to existing browser and open as new tab.
However, the user can close the browser and re-open it again, but my session_id and url value in the .ini is not resetting, thus it throw error.

How can I detect if the browser is closed by the user, then it will reset the value of session_id and url in the .ini file?