how to use Api Key without directly using it in the python code?

You would be looking to store the API key in your environment variables, then read from the environment variables in your python code.

In Jupyter you could achieve this with magic commands; https://ipython.readthedocs.io/en/stable/interactive/magics.html

Set with

%env VAR_KEY VAR_VALUE

You can then use these with

import os
os.getenv(key)

Example

Alternatively, instead of magic commands you could set the env variable in your kernel.json, see here; https://stackoverflow.com/a/53595397/12707704

https://www.youtube.com/watch?v=YdgIWTYQ69A u can flow this tutorial

Simply create a file name ".env" and write your API key in Like this : "API_KEY = YOUR_API_KEY"

then run "pip3 install dotenv" in your cmd

then in your code, add some lines :

from dotenv import load_dotenv
import os

load_dotenv()

API_KEY=os.getenv("API_KEY")