Python API to monitor file system events.

import sys
import time
from watchdog import Observer, FileSystemEventHandler
import logging

logging.basicConfig(level=logging.DEBUG)

class MyEventHandler(FileSystemEventHandler):
    def catch_all_handler(self, event):
        logging.debug(event)

    def on_moved(self, event):
        self.catch_all_handler(event)

    def on_created(self, event):
        self.catch_all_handler(event)

    def on_deleted(self, event):
        self.catch_all_handler(event)

    def on_modified(self, event):
        self.catch_all_handler(event)


event_handler = MyEventHandler()
observer = Observer()
observer.schedule('a-unique-name', event_handler, *sys.argv[1:])
observer.start()
try:
    while True:
        time.sleep(1)
except KeyboardInterrupt:
    observer.unschedule('a-unique-name')
    observer.stop()
observer.join()

Watchdog lets your Python programs monitor filesystem events as portably as possible using:

• inotify on Linux
• FSEvents on Mac OS X
• Windows API on Windows.
• polling as a fallback mechanism

1. pywin32 (only on Windows)
2. pyinotify (only on Linux)
3. XCode or gcc (only on Mac OS X)

Watchdog is licensed under the terms of the MIT License