watchdog monitoring file for changes

Question

I have a need to watch a log file for changes. After looking through stackoverflow questions, I see people recommending watchdog. So I\'m trying to test, and

Answer 1

Here's a snippet to prevent it running twice as others have commented in @alecxe answer:

from datetime import datetime, timedelta

class MyHandler(FileSystemEventHandler):
    def __init__(self):
        self.last_modified = datetime.now()

    def on_modified(self, event):
        if datetime.now() - self.last_modified < timedelta(seconds=1):
            return
        else:
            self.last_modified = datetime.now()
        print(f'Event type: {event.event_type}  path : {event.src_path}')
        print(event.is_directory) # This attribute is also available