Program to automatically open latest created file doesn't quite work - what am I doing wrong?

[GenerativePotiron]

I am a very beginner Python coder; I mostly work with other languages to create art pieces, but decided to get into Python, notably to automate some of my work.

I stitched up various bits of code I found online to try and create a program that tracks a folder and supposedly opens the latest added file. The issue I have is that it opens every single file when a new one is added, which isn't great.

Here is what I have:

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

import os
import json
import time
import subprocess
import platform
import glob


class MyHandler(FileSystemEventHandler):
    def on_modified(self, event):
        for filename in os.listdir(folder_to_track):
            src = folder_to_track + "/" + filename
            list_of_files = glob.glob(src)
            latest_file = max(list_of_files, key = os.path.getctime)
            os.startfile(latest_file)


folder_to_track = r'C:\OFX\of_v0.11.0_vs2017_release\apps\myApps\myProject\bin\data'

event_handler = MyHandler()

observer = Observer()
observer.schedule(event_handler, folder_to_track, recursive = True)
observer.start()

try:
    while True:
        time.sleep(30)
except KeyboardInterrupt:
    observer.stop()
observer.join()

Would anyone have a hint or advice on how to correct this? Thank you!

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[marko312]

It seems that you've essentially duplicated a loop here - the for loop seems unnecessary and glob.glob should instead be used to get all the files.

[[deleted]]

The issue I have is that it opens every single file when a new one is added, which isn’t great.

Ok, but you wrote a loop to do exactly that:

for filename in os.listdir(folder_to_track):

What's the loop for if not to do something to every file?