watchdog example

watch.js

import time
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

class ChangeHandler(FileSystemEventHandler):
    def on_modified(self, event):
        print event.event_type, event.src_path

if __name__ == "__main__":
    event_handler = ChangeHandler()
    observer = Observer()
    observer.schedule(event_handler, ".")
    observer.start()
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()