Python Os.walk() Get Files Before Directories

I want to simulate the -depth argument of bash find command using python os.walk().

From the Linux manual page:

-depth Process each directory's contents before the directory
              itself.

How can this be done ?

You can use files or dirs like this:

import os
root_path = r'/home/testuser/test/'
for root, dirs, files in os.walk(root_path, topdown=True):
    print(root)
    print(dirs)
    print(files)

also you can walk through directories from bottom to top with topdown=False