os path basename not removing extension code example

Example 1: how to get just the filename in python

import os
>>> base=os.path.basename('/root/dir/sub/file.ext')
>>> base
'file.ext'
>>> os.path.splitext(base)
('file', '.ext')
>>> os.path.splitext(base)[0]
'file'

Example 2: file base name and extension python

from pathlib import Path

Path('/root/dir/sub/file.ext').stem