import os
# this will return a tuple of root and extension
split_tup = os.path.splitext('my_file.txt')
print(split_tup)
# extract the file name and extension
file_name = split_tup[0]
file_extension = split_tup[1]
print("File Name: ", file_name)
print("File Extension: ", file_extension)
('my_file', '.txt')
File Name: my_file
File Extension: .txt