How to monitor in real time all the Python files that are running on the computer including files started from subprocess?

I have 4 Python files that are executed in cmd separately and uninterruptedly on my computer during all day. Within the codes there are subprocess that execute other Python files in the background.

To keep track of which files are currently being executed, I added a function to the code of all of them that, when the file starts executing, creates an empty .txt file in a specific folder and deletes this file when it finishes executing.

For example, the subprocess executes the file collect_data.py so this file at the beginning of the code creates the file collect_data.txt, does its work and when finished, deletes the file collect_data.txt.

Obs.: The 4 main files that run all day also create their own .txt and delete it when they stop running.

So, I monitor the existing files in the aforementioned folder using watchdog:

from watchdog.events import FileSystemEventHandlerfrom watchdog.observers import Observerimport tkinter as tkimport osclass FileChangeHandler(FileSystemEventHandler):    def __init__(self, file_list):        super().__init__()        self.file_list = file_list    def on_any_event(self, event):        self.update_file_list()    def update_file_list(self):        files = os.listdir(folder_path)        self.file_list.delete(0, tk.END)        for file in files:            self.file_list.insert(tk.END, file)def monitor_folder():    event_handler.update_file_list()    root.after(1000, monitor_folder)folder_path = r"C:\Users\Computador\Desktop\utilities_code\run_process"root = tk.Tk()root.title("Lista de Arquivos")root.minsize(400, 300)file_list = tk.Listbox(root, bg="black", fg="white")file_list.pack(fill=tk.BOTH, expand=True)event_handler = FileChangeHandler(file_list)observer = Observer()observer.schedule(event_handler, folder_path)observer.start()monitor_folder()root.mainloop()

What I do, I know that it is a palliative form and I would like to know if there is any intelligent and correct method to specifically address my need to be completely and absolutely sure of which files are being executed and also to track a possible file that is not being able to complete its execution leaving your process open "forever"?