Make file read-only in Python

If you want to make file read-only:

import os
from stat import S_IREAD

os.chmod('path/to/file.txt', S_IREAD)

If you want to make file writeable:

import os
from stat import S_IWRITE

os.chmod('path/to/file.txt', S_IWRITE)

Ref. 1: http://stackoverflow.com/a/28492823/4064166

Ref. 2: http://techarttiki.blogspot.in/2008/08/read-only-windows-files-with-python.html