eliminating letters when typed in python window

[deebo]

Hey there! I'm a novice trying to write program (using the turtle mod) that makes letters from a random word disappear (start to finish) as I type them. I wrote it out in my terminal using the print function and I have it working:

import random

word_list = ["thing", "crazy", "house", "proud", "train"]

def word_ch_5():
    x=random.choice(word_list)
    print(x)
    while len(x) >= 0:
         index = 0
         if x[index] == input():
             x = x[index+1:len(x)]
             print(x)

word_ch_5()

BUT I want this to work IN a turtle.Screen, not just in the terminal. How do I get the text to translate and react the same way, but in the python window? I am currently just using the pen.write function to make the text appear. Any help would be VERY MUCH APPRECIATED! Thank you!