python methods for separating filenames and paths and for separating filenames and suffixes

Separate path and file name:

os.path.split()

Distinguish file names and suffixes:

os.path.splitext()

import os
 
file_path = "D:/test/test.py"
(filepath, tempfilename) = os.path.split(file_path)
(filename, extension) = os.path.splitext(tempfilename)