Maybe you want to implement something like this?

import time

text = input("Enter your text: ").lower()

for char in text:
    print(' ', end='')
    for ch in range(ord('a'), ord(char)):
        print('\b'+chr(ch), end='')
        time.sleep(0.01)
    print('\b'+char, end='')
    time.sleep(0.01)
print()