Here is the letters:
letters=\'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\'
I made a list of it with this:
<
If you want to create 0-list with the length of string letters.
0
letters
letters='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789' chars = [0 for _ in range(len(letters))]