Controling user input as per expected in Python 3 : If you ask someone a yes/no question then the answer is one of these two options. 
In programming what if the response was "Y" or "y" or "yes" or whatever?
  
I had to create a compound condition repeating my statement while its actually the same one. 
I'm not an expert but i can see that it can be improved.

below is s snippet from my code:
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    def note_maker(note):
        case_note = open("case_note.txt", "a+")
        update = case_note.write("\n" + note)
        multiple_inputs = input("Do you want to enter more details? Y/N")

        while multiple_inputs == "yes" or multiple_inputs == "YES" or multiple_inputs == "Yes" or multiple_inputs == "Y" or multiple_inputs == "y":

            update_again = case_note.write("\n" + input("Enter your additional information"))
            multiple_inputs = input("Do you want to enter more details?")

        case_note.close()

Is there a way to control the user input into what I expect ?


thanks alot,