basically I'm quite new to python so I decided to make a simple calculator, I have done the coding for the calculator and that all works and I am happy, however I would like an if-else statement to see if they would like to continue with another calculation. So this is the top part of my code and the bottom part of my code, I would like to know how to get it so that after the 'else' part of the code, it just runs the rest of the code. 

```
import os
done = ("")
if done == True:
    os._exit(0)
else:
    print ("---CALCULATOR---")

...

done = str(input("Would you like to do another calculation? (Y/N) "))
if done == "N" or "n":
    done = True
if done == "Y" or "y":
    done = False

```

Any help would be appreciated.