How can I work this codes in Windows?

[snippsat]

Test to see if it work.

import subprocess

moive_to_edit = 'jelly.mkv'
movie_title = 'Swimming jelly fish'
output = subprocess.run(['mkvpropedit', moive_to_edit, '--edit', 'info', '--set', f'title={movie_title}'], capture_output=True)
print(output.stdout.decode())

Output:
E:\div_code\bat
λ python ajelly.py
The file is being analyzed.
The changes are written to the file.
Done.

Work,movie have new title Swimming jelly fish

Try to simplify down(also name of movie) as i do here to get to work outside of script,i use cmder so ls work in cmd is dir.

E:\div_code\bat
λ ls
ajelly.py  mkvpropedit.exe* jelly.mkv

Now you get two errors mkvpropedit command don't work and FileNotFoundError.
Do not use singel \ in path string,other way / or put and r in front.

>>> r'C:\Program Files\MKVToolNix\mkvpropedit.exe'
'C:\\Program Files\\MKVToolNix\\mkvpropedit.exe'