how to define a path in python code example

Example 1: path in python

data_folder = "source_data/text_files/"

file_to_open = data_folder + "raw_data.txt"

f = open(file_to_open)

print(f.read())

Example 2: what does filename = path(file).stem python

from pathlib import Path

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

# returns 'file'