Beginner question

[eschneider92 at comcast.net]

Is there a more efficient way of doing this? Any help is gratly appreciated.


import random
def partdeux():
    print('''A man lunges at you with a knife!
Do you DUCK or PARRY?''')
    option1=('duck')
    option2=('parry')
    optionsindex=[option1, option2]
    randomizer=random.choice(optionsindex)
    while randomizer==option1:
        if input() in option1:
            print('he tumbles over you')
            break
        else:
            print('he stabs you')
            break
    while randomizer==option2:
        if input() in option2:
            print('you trip him up')
            break
        else:
            print('he stabs you')
            break
partdeux()