How to append at a specific position

[perfringo]

Documentation from python.org:

built-in function zip(),
string method str.join(),
conditional expressions,
generator expression

Python is so concise that expressing it in spoken language is much longer and complicated:

(char if char == guess else star for char, star in zip(password, display))

"generate character if character is equal to guess else generate star for every character - star pair in zipped password and display",

''.join

"join generated chars and stars into string"

display =

Assign value of newly generated string to display (required if one want to repeat the operation)