How can I replace every letter from a string with a '-' except for the variable character? (Python)

Question

I want to replace every character in a string with a '-' except for the entered variable.

For example, if guessedLetter = h, the string 'house' would become 'h----'

Answer 1

You can use list comprehension

guessedLetter = 'h'
string = 'house' 
new = ''.join(['-' if let != guessedLetter else guessedLetter for let in string])

output

h----

Answer 2

You need regex:

import re

guessedLetter = 'o'
s = 'house'
result = re.sub(f'[^{guessedLetter}]', '-', s)