files.py

import os

print(os.path.join('folder1','folder2','file.png'))

print(os.getcwd()) # current working directory

print(os.path.abspath('spam.png'))

print(os.path.dirname('/home/amit/python-playground/spam.png'))

print(os.path.basename('/home/amit/python-playground/spam.png'))

print(os.path.exists('/home/amit/python-playground/spam.pnggg'))

print(os.listdir('/home/amit/python-playground/'))

print(os.walk('/home/amit/python-playground'))

for folderName, subfolders, filenames in os.walk('/home/amit/python-playground'):
    print('The folders is' +  folderName)
    print('The subfolders in' +  folderName + 'are' + str(subfolders))
    print('The filenames in' +  folderName + 'are' + str(filenames))
    print()