def close(self):
        """
        Closes the inotify instance and removes all associated watches.
        """
        with self._lock:
            if self._path in self._wd_for_path:
                wd = self._wd_for_path[self._path]
                inotify_rm_watch(self._inotify_fd, wd)

            try:
                os.close(self._inotify_fd)
            except OSError:
                # descriptor may be invalid because file was deleted
                pass

        Closes the inotify instance and removes all associated watches.
        
src/watchdog/observers/inotify_c.py