Automate Zerodha Kite Connect Daily Access Token & TOTP Generation in Python (pyotp)

import pyotp
import json
from datetime import date
from kiteconnect import KiteConnect

def get_totp_pin(totp_base32_secret: str) -> str:
    return pyotp.TOTP(totp_base32_secret).now()

def init_kite_session(api_key, api_secret, request_token=None, token_file='kite_token.json'):
    kite = KiteConnect(api_key=api_key)
    today_str = date.today().isoformat()
    
    if request_token:
        session_data = kite.generate_session(request_token, api_secret=api_secret)
        access_token = session_data['access_token']
        with open(token_file, 'w') as f:
            json.dump({'date': today_str, 'access_token': access_token}, f)
        kite.set_access_token(access_token)
        return kite
        
    with open(token_file, 'r') as f:
        saved = json.load(f)
    if saved.get('date') != today_str:
        raise RuntimeError('Token expired! Generate fresh request_token for today.')
    kite.set_access_token(saved['access_token'])
    return kite