A pathlib-based way to walk the filesys

walker.py

#!/usr/bin/python3

from pathlib import Path

# Define an action that you can send into the generator
SKIPDIR = 1

# Path walkin' generator coroutine
def walk(topdir='.'):
    for p in Path(topdir).iterdir():
        action = yield p
        if p.is_dir() and action is not SKIPDIR:
            yield from walk(p)

# Example use: just list files, skipping .git
if __name__ == '__main__':
    walker = walk()
    for p in walker:
        # If we have a directory we don't want to descend, tell the walker
        if p.is_dir() and p.name == '.git':
            walker.send(SKIPDIR)
        # Process files. For this example we're just printing them.
        if p.is_file():
            print(p)