Why watchdog is delayed to show file changes?

[calfland79]

I am learning watchdog. My code is just to detect creation of *.rst files and print their path. After running this code, creating a new rst file in the same folder. It took about 10 mins to have reaction that path was printed. don't know why.

My test code is as follow:

import os

import sys

from watchdog.observers import Observer

from watchdog.events import FileSystemEventHandler

BASEDIR = os.path.abspath(os.path.dirname(__file__))

def run_tests(filepath):

    "Run unit tests with unittest."

    print filepath

     

def getext(filename):

    "Get the file extension."

    return os.path.splitext(filename)[-1].lower()

class ChangeHandler(FileSystemEventHandler):

    """

    React to changes in Python and Rest files by

    running unit tests (Python) or building docs (.rst)

    """

    def on_any_event(self, event):

        "If any file or folder is changed"

        if event.is_directory:

            return

        elif getext(event.src_path) == '.rst':

            run_tests(event.src_path)

def main():

    """

    Called when run as main.

    Look for changes to code and doc files.

    """

    while 1:

    

        event_handler = ChangeHandler()

        observer = Observer()

        observer.schedule(event_handler, BASEDIR, recursive=True)

        observer.start()

        try:

            while True:

                time.sleep(1)

        except KeyboardInterrupt:

            observer.stop()

        observer.join()

if __name__ == '__main__':

    main()